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Finding the Fourth Proportional to 372,491.40, 558,737.10 and 335,166.60

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Solution

The fourth proportional to 372,491.40, 558,737.10 and 335,166.60 is: 502,749.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,491.40 : 558,737.10 = 335,166.60 : x
  2. Step 2: Convert to fraction form
    372,491.40/558,737.10 = 335,166.60/x
  3. Step 3: Cross multiply
    372,491.40x = 558,737.10 × 335,166.60
  4. Step 4: Simplify right side
    372,491.40x = 187,270,014,100.86
  5. Step 5: Solve for x
    x = 187,270,014,100.86/372,491.40
  6. Step 6: Final answer
    x = 502,749.90

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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.