Home / 658,569.31-987,739.14-185,142.13

Finding the Fourth Proportional to 658,569.31, 987,739.14 and 185,142.13

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Solution

The fourth proportional to 658,569.31, 987,739.14 and 185,142.13 is: 277,680.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,569.31 : 987,739.14 = 185,142.13 : x
  2. Step 2: Convert to fraction form
    658,569.31/987,739.14 = 185,142.13/x
  3. Step 3: Cross multiply
    658,569.31x = 987,739.14 × 185,142.13
  4. Step 4: Simplify right side
    658,569.31x = 182,872,128,263.97
  5. Step 5: Solve for x
    x = 182,872,128,263.97/658,569.31
  6. Step 6: Final answer
    x = 277,680.91

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Double scale
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Similar ratio
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1.5x scale

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.