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Finding the Fourth Proportional to 518,914.59, 715,734.14 and 337,291.53

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Solution

The fourth proportional to 518,914.59, 715,734.14 and 337,291.53 is: 465,223.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,914.59 : 715,734.14 = 337,291.53 : x
  2. Step 2: Convert to fraction form
    518,914.59/715,734.14 = 337,291.53/x
  3. Step 3: Cross multiply
    518,914.59x = 715,734.14 × 337,291.53
  4. Step 4: Simplify right side
    518,914.59x = 241,411,061,467.38
  5. Step 5: Solve for x
    x = 241,411,061,467.38/518,914.59
  6. Step 6: Final answer
    x = 465,223.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.