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Finding the Fourth Proportional to 659,046.98, 909,321.80 and 372,560.92

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Solution

The fourth proportional to 659,046.98, 909,321.80 and 372,560.92 is: 514,041.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,046.98 : 909,321.80 = 372,560.92 : x
  2. Step 2: Convert to fraction form
    659,046.98/909,321.80 = 372,560.92/x
  3. Step 3: Cross multiply
    659,046.98x = 909,321.80 × 372,560.92
  4. Step 4: Simplify right side
    659,046.98x = 338,777,762,247.95
  5. Step 5: Solve for x
    x = 338,777,762,247.95/659,046.98
  6. Step 6: Final answer
    x = 514,041.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.