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Finding the Fourth Proportional to 638,801.10, 958,201.65 and 607,697.10

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Solution

The fourth proportional to 638,801.10, 958,201.65 and 607,697.10 is: 911,545.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,801.10 : 958,201.65 = 607,697.10 : x
  2. Step 2: Convert to fraction form
    638,801.10/958,201.65 = 607,697.10/x
  3. Step 3: Cross multiply
    638,801.10x = 958,201.65 × 607,697.10
  4. Step 4: Simplify right side
    638,801.10x = 582,296,363,920.22
  5. Step 5: Solve for x
    x = 582,296,363,920.22/638,801.10
  6. Step 6: Final answer
    x = 911,545.65

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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.