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Finding the Fourth Proportional to 605,126.10, 907,689.15 and 577,569.90

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Solution

The fourth proportional to 605,126.10, 907,689.15 and 577,569.90 is: 866,354.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,126.10 : 907,689.15 = 577,569.90 : x
  2. Step 2: Convert to fraction form
    605,126.10/907,689.15 = 577,569.90/x
  3. Step 3: Cross multiply
    605,126.10x = 907,689.15 × 577,569.90
  4. Step 4: Simplify right side
    605,126.10x = 524,253,931,596.59
  5. Step 5: Solve for x
    x = 524,253,931,596.59/605,126.10
  6. Step 6: Final answer
    x = 866,354.85

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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.