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Finding the Fourth Proportional to 659,216.34, 909,713.57 and 372,746.61

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Solution

The fourth proportional to 659,216.34, 909,713.57 and 372,746.61 is: 514,387.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,216.34 : 909,713.57 = 372,746.61 : x
  2. Step 2: Convert to fraction form
    659,216.34/909,713.57 = 372,746.61/x
  3. Step 3: Cross multiply
    659,216.34x = 909,713.57 × 372,746.61
  4. Step 4: Simplify right side
    659,216.34x = 339,092,647,424.77
  5. Step 5: Solve for x
    x = 339,092,647,424.77/659,216.34
  6. Step 6: Final answer
    x = 514,387.50

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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.