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Finding the Fourth Proportional to 431,951.19, 596,211.20 and 250,721.50

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Solution

The fourth proportional to 431,951.19, 596,211.20 and 250,721.50 is: 346,064.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,951.19 : 596,211.20 = 250,721.50 : x
  2. Step 2: Convert to fraction form
    431,951.19/596,211.20 = 250,721.50/x
  3. Step 3: Cross multiply
    431,951.19x = 596,211.20 × 250,721.50
  4. Step 4: Simplify right side
    431,951.19x = 149,482,966,380.80
  5. Step 5: Solve for x
    x = 149,482,966,380.80/431,951.19
  6. Step 6: Final answer
    x = 346,064.49

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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.