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Finding the Fourth Proportional to 749,229,585.55, 1,123,844,378.33 and 749,229,585.55

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Solution

The fourth proportional to 749,229,585.55, 1,123,844,378.33 and 749,229,585.55 is: 1,123,844,378.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,229,585.55 : 1,123,844,378.33 = 749,229,585.55 : x
  2. Step 2: Convert to fraction form
    749,229,585.55/1,123,844,378.33 = 749,229,585.55/x
  3. Step 3: Cross multiply
    749,229,585.55x = 1,123,844,378.33 × 749,229,585.55
  4. Step 4: Simplify right side
    749,229,585.55x = 842,017,457,795,137,152
  5. Step 5: Solve for x
    x = 842,017,457,795,137,152/749,229,585.55
  6. Step 6: Final answer
    x = 1,123,844,378.33

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.