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Finding the Fourth Proportional to 658,152.60, 986,969.70 and 237,211.80

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Solution

The fourth proportional to 658,152.60, 986,969.70 and 237,211.80 is: 355,724.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,152.60 : 986,969.70 = 237,211.80 : x
  2. Step 2: Convert to fraction form
    658,152.60/986,969.70 = 237,211.80/x
  3. Step 3: Cross multiply
    658,152.60x = 986,969.70 × 237,211.80
  4. Step 4: Simplify right side
    658,152.60x = 234,120,859,082.46
  5. Step 5: Solve for x
    x = 234,120,859,082.46/658,152.60
  6. Step 6: Final answer
    x = 355,724.28

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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.