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Finding the Fourth Proportional to 746,713.10, 1,120,069.65 and 746,713.10

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Solution

The fourth proportional to 746,713.10, 1,120,069.65 and 746,713.10 is: 1,120,069.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,713.10 : 1,120,069.65 = 746,713.10 : x
  2. Step 2: Convert to fraction form
    746,713.10/1,120,069.65 = 746,713.10/x
  3. Step 3: Cross multiply
    746,713.10x = 1,120,069.65 × 746,713.10
  4. Step 4: Simplify right side
    746,713.10x = 836,370,680,567.42
  5. Step 5: Solve for x
    x = 836,370,680,567.42/746,713.10
  6. Step 6: Final answer
    x = 1,120,069.65

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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.