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Finding the Fourth Proportional to 624,598.09, 861,944.39 and 338,118.10

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Solution

The fourth proportional to 624,598.09, 861,944.39 and 338,118.10 is: 466,602.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,598.09 : 861,944.39 = 338,118.10 : x
  2. Step 2: Convert to fraction form
    624,598.09/861,944.39 = 338,118.10/x
  3. Step 3: Cross multiply
    624,598.09x = 861,944.39 × 338,118.10
  4. Step 4: Simplify right side
    624,598.09x = 291,438,996,874.95
  5. Step 5: Solve for x
    x = 291,438,996,874.95/624,598.09
  6. Step 6: Final answer
    x = 466,602.45

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Double scale
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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.