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Finding the Fourth Proportional to 624,494.16, 861,800.40 and 338,011.92

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Solution

The fourth proportional to 624,494.16, 861,800.40 and 338,011.92 is: 466,455.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,494.16 : 861,800.40 = 338,011.92 : x
  2. Step 2: Convert to fraction form
    624,494.16/861,800.40 = 338,011.92/x
  3. Step 3: Cross multiply
    624,494.16x = 861,800.40 × 338,011.92
  4. Step 4: Simplify right side
    624,494.16x = 291,298,807,860.77
  5. Step 5: Solve for x
    x = 291,298,807,860.77/624,494.16
  6. Step 6: Final answer
    x = 466,455.62

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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.