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Finding the Fourth Proportional to 574,316.20, 861,474.30 and 147,851.20

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Solution

The fourth proportional to 574,316.20, 861,474.30 and 147,851.20 is: 221,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,316.20 : 861,474.30 = 147,851.20 : x
  2. Step 2: Convert to fraction form
    574,316.20/861,474.30 = 147,851.20/x
  3. Step 3: Cross multiply
    574,316.20x = 861,474.30 × 147,851.20
  4. Step 4: Simplify right side
    574,316.20x = 127,370,009,024.16
  5. Step 5: Solve for x
    x = 127,370,009,024.16/574,316.20
  6. Step 6: Final answer
    x = 221,776.80

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Similar ratio
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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.