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Finding the Fourth Proportional to 496,729.80, 745,094.70 and 437,680.80

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Solution

The fourth proportional to 496,729.80, 745,094.70 and 437,680.80 is: 656,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,729.80 : 745,094.70 = 437,680.80 : x
  2. Step 2: Convert to fraction form
    496,729.80/745,094.70 = 437,680.80/x
  3. Step 3: Cross multiply
    496,729.80x = 745,094.70 × 437,680.80
  4. Step 4: Simplify right side
    496,729.80x = 326,113,644,371.76
  5. Step 5: Solve for x
    x = 326,113,644,371.76/496,729.80
  6. Step 6: Final answer
    x = 656,521.20

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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.