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Finding the Fourth Proportional to 435,776.20, 653,664.30 and 277,534.60

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Solution

The fourth proportional to 435,776.20, 653,664.30 and 277,534.60 is: 416,301.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,776.20 : 653,664.30 = 277,534.60 : x
  2. Step 2: Convert to fraction form
    435,776.20/653,664.30 = 277,534.60/x
  3. Step 3: Cross multiply
    435,776.20x = 653,664.30 × 277,534.60
  4. Step 4: Simplify right side
    435,776.20x = 181,414,460,034.78
  5. Step 5: Solve for x
    x = 181,414,460,034.78/435,776.20
  6. Step 6: Final answer
    x = 416,301.90

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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.