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Finding the Fourth Proportional to 574,443.20, 862,053.60 and 258,737.60

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Solution

The fourth proportional to 574,443.20, 862,053.60 and 258,737.60 is: 388,281.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,443.20 : 862,053.60 = 258,737.60 : x
  2. Step 2: Convert to fraction form
    574,443.20/862,053.60 = 258,737.60/x
  3. Step 3: Cross multiply
    574,443.20x = 862,053.60 × 258,737.60
  4. Step 4: Simplify right side
    574,443.20x = 223,045,679,535.36
  5. Step 5: Solve for x
    x = 223,045,679,535.36/574,443.20
  6. Step 6: Final answer
    x = 388,281.52

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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.