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Finding the Fourth Proportional to 439,337.70, 657,548.55 and 319,052.70

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Solution

The fourth proportional to 439,337.70, 657,548.55 and 319,052.70 is: 477,520.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,337.70 : 657,548.55 = 319,052.70 : x
  2. Step 2: Convert to fraction form
    439,337.70/657,548.55 = 319,052.70/x
  3. Step 3: Cross multiply
    439,337.70x = 657,548.55 × 319,052.70
  4. Step 4: Simplify right side
    439,337.70x = 209,792,640,258.59
  5. Step 5: Solve for x
    x = 209,792,640,258.59/439,337.70
  6. Step 6: Final answer
    x = 477,520.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.