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Finding the Fourth Proportional to 624,603.36, 861,951.65 and 338,123.37

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Solution

The fourth proportional to 624,603.36, 861,951.65 and 338,123.37 is: 466,609.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,603.36 : 861,951.65 = 338,123.37 : x
  2. Step 2: Convert to fraction form
    624,603.36/861,951.65 = 338,123.37/x
  3. Step 3: Cross multiply
    624,603.36x = 861,951.65 × 338,123.37
  4. Step 4: Simplify right side
    624,603.36x = 291,445,994,984.44
  5. Step 5: Solve for x
    x = 291,445,994,984.44/624,603.36
  6. Step 6: Final answer
    x = 466,609.71

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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.