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Finding the Fourth Proportional to 372,254.40, 557,722.80 and 359,920.80

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Solution

The fourth proportional to 372,254.40, 557,722.80 and 359,920.80 is: 539,244.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,254.40 : 557,722.80 = 359,920.80 : x
  2. Step 2: Convert to fraction form
    372,254.40/557,722.80 = 359,920.80/x
  3. Step 3: Cross multiply
    372,254.40x = 557,722.80 × 359,920.80
  4. Step 4: Simplify right side
    372,254.40x = 200,736,036,354.24
  5. Step 5: Solve for x
    x = 200,736,036,354.24/372,254.40
  6. Step 6: Final answer
    x = 539,244.23

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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.