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Finding the Fourth Proportional to 552,706.20, 829,059.30 and 383,869.80

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Solution

The fourth proportional to 552,706.20, 829,059.30 and 383,869.80 is: 575,804.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,706.20 : 829,059.30 = 383,869.80 : x
  2. Step 2: Convert to fraction form
    552,706.20/829,059.30 = 383,869.80/x
  3. Step 3: Cross multiply
    552,706.20x = 829,059.30 × 383,869.80
  4. Step 4: Simplify right side
    552,706.20x = 318,250,827,679.14
  5. Step 5: Solve for x
    x = 318,250,827,679.14/552,706.20
  6. Step 6: Final answer
    x = 575,804.70

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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.