Home / 621,432,644.20-932,148,966.30-258,635,588.20

Finding the Fourth Proportional to 621,432,644.20, 932,148,966.30 and 258,635,588.20

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Solution

The fourth proportional to 621,432,644.20, 932,148,966.30 and 258,635,588.20 is: 387,953,382.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,432,644.20 : 932,148,966.30 = 258,635,588.20 : x
  2. Step 2: Convert to fraction form
    621,432,644.20/932,148,966.30 = 258,635,588.20/x
  3. Step 3: Cross multiply
    621,432,644.20x = 932,148,966.30 × 258,635,588.20
  4. Step 4: Simplify right side
    621,432,644.20x = 241,086,896,189,022,464
  5. Step 5: Solve for x
    x = 241,086,896,189,022,464/621,432,644.20
  6. Step 6: Final answer
    x = 387,953,382.30

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Double scale
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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.