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Finding the Fourth Proportional to 518,917.38, 777,807.45 and 203,027.10

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Solution

The fourth proportional to 518,917.38, 777,807.45 and 203,027.10 is: 304,318.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,917.38 : 777,807.45 = 203,027.10 : x
  2. Step 2: Convert to fraction form
    518,917.38/777,807.45 = 203,027.10/x
  3. Step 3: Cross multiply
    518,917.38x = 777,807.45 × 203,027.10
  4. Step 4: Simplify right side
    518,917.38x = 157,915,990,931.90
  5. Step 5: Solve for x
    x = 157,915,990,931.90/518,917.38
  6. Step 6: Final answer
    x = 304,318.18

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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.