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Finding the Fourth Proportional to 550,511.55, 825,767.33 and 314,315.55

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Solution

The fourth proportional to 550,511.55, 825,767.33 and 314,315.55 is: 471,473.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,511.55 : 825,767.33 = 314,315.55 : x
  2. Step 2: Convert to fraction form
    550,511.55/825,767.33 = 314,315.55/x
  3. Step 3: Cross multiply
    550,511.55x = 825,767.33 × 314,315.55
  4. Step 4: Simplify right side
    550,511.55x = 259,551,510,929.40
  5. Step 5: Solve for x
    x = 259,551,510,929.40/550,511.55
  6. Step 6: Final answer
    x = 471,473.33

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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.