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Finding the Fourth Proportional to 372,472.40, 558,708.60 and 335,147.60

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Solution

The fourth proportional to 372,472.40, 558,708.60 and 335,147.60 is: 502,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,472.40 : 558,708.60 = 335,147.60 : x
  2. Step 2: Convert to fraction form
    372,472.40/558,708.60 = 335,147.60/x
  3. Step 3: Cross multiply
    372,472.40x = 558,708.60 × 335,147.60
  4. Step 4: Simplify right side
    372,472.40x = 187,249,846,389.36
  5. Step 5: Solve for x
    x = 187,249,846,389.36/372,472.40
  6. Step 6: Final answer
    x = 502,721.40

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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.