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Finding the Fourth Proportional to 624,885.44, 862,337.40 and 338,398.88

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Solution

The fourth proportional to 624,885.44, 862,337.40 and 338,398.88 is: 466,988.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,885.44 : 862,337.40 = 338,398.88 : x
  2. Step 2: Convert to fraction form
    624,885.44/862,337.40 = 338,398.88/x
  3. Step 3: Cross multiply
    624,885.44x = 862,337.40 × 338,398.88
  4. Step 4: Simplify right side
    624,885.44x = 291,814,010,342.11
  5. Step 5: Solve for x
    x = 291,814,010,342.11/624,885.44
  6. Step 6: Final answer
    x = 466,988.01

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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.