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Finding the Fourth Proportional to 572,562.70, 859,172.10 and 217,831.30

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Solution

The fourth proportional to 572,562.70, 859,172.10 and 217,831.30 is: 326,871.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,562.70 : 859,172.10 = 217,831.30 : x
  2. Step 2: Convert to fraction form
    572,562.70/859,172.10 = 217,831.30/x
  3. Step 3: Cross multiply
    572,562.70x = 859,172.10 × 217,831.30
  4. Step 4: Simplify right side
    572,562.70x = 187,154,575,466.73
  5. Step 5: Solve for x
    x = 187,154,575,466.73/572,562.70
  6. Step 6: Final answer
    x = 326,871.76

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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.