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Finding the Fourth Proportional to 372,149.80, 558,224.70 and 369,039.40

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Solution

The fourth proportional to 372,149.80, 558,224.70 and 369,039.40 is: 553,559.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,149.80 : 558,224.70 = 369,039.40 : x
  2. Step 2: Convert to fraction form
    372,149.80/558,224.70 = 369,039.40/x
  3. Step 3: Cross multiply
    372,149.80x = 558,224.70 × 369,039.40
  4. Step 4: Simplify right side
    372,149.80x = 206,006,908,353.18
  5. Step 5: Solve for x
    x = 206,006,908,353.18/372,149.80
  6. Step 6: Final answer
    x = 553,559.10

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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.