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Finding the Fourth Proportional to 418,718.88, 625,242.11 and 332,360.87

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Solution

The fourth proportional to 418,718.88, 625,242.11 and 332,360.87 is: 496,290.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,718.88 : 625,242.11 = 332,360.87 : x
  2. Step 2: Convert to fraction form
    418,718.88/625,242.11 = 332,360.87/x
  3. Step 3: Cross multiply
    418,718.88x = 625,242.11 × 332,360.87
  4. Step 4: Simplify right side
    418,718.88x = 207,806,009,931.09
  5. Step 5: Solve for x
    x = 207,806,009,931.09/418,718.88
  6. Step 6: Final answer
    x = 496,290.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.