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Finding the Fourth Proportional to 638,778.32, 881,567.04 and 366,898.68

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Solution

The fourth proportional to 638,778.32, 881,567.04 and 366,898.68 is: 506,350.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,778.32 : 881,567.04 = 366,898.68 : x
  2. Step 2: Convert to fraction form
    638,778.32/881,567.04 = 366,898.68/x
  3. Step 3: Cross multiply
    638,778.32x = 881,567.04 × 366,898.68
  4. Step 4: Simplify right side
    638,778.32x = 323,445,784,683.38
  5. Step 5: Solve for x
    x = 323,445,784,683.38/638,778.32
  6. Step 6: Final answer
    x = 506,350.60

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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.