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Finding the Fourth Proportional to 435,711.60, 651,817.80 and 377,197.20

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Solution

The fourth proportional to 435,711.60, 651,817.80 and 377,197.20 is: 564,281.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,711.60 : 651,817.80 = 377,197.20 : x
  2. Step 2: Convert to fraction form
    435,711.60/651,817.80 = 377,197.20/x
  3. Step 3: Cross multiply
    435,711.60x = 651,817.80 × 377,197.20
  4. Step 4: Simplify right side
    435,711.60x = 245,863,849,070.16
  5. Step 5: Solve for x
    x = 245,863,849,070.16/435,711.60
  6. Step 6: Final answer
    x = 564,281.16

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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.