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Finding the Fourth Proportional to 624,883.66, 862,338.14 and 338,402.86

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Solution

The fourth proportional to 624,883.66, 862,338.14 and 338,402.86 is: 466,995.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,883.66 : 862,338.14 = 338,402.86 : x
  2. Step 2: Convert to fraction form
    624,883.66/862,338.14 = 338,402.86/x
  3. Step 3: Cross multiply
    624,883.66x = 862,338.14 × 338,402.86
  4. Step 4: Simplify right side
    624,883.66x = 291,817,691,171.07
  5. Step 5: Solve for x
    x = 291,817,691,171.07/624,883.66
  6. Step 6: Final answer
    x = 466,995.23

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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.