Home / 639,862.17-883,004.38-353,376.11

Finding the Fourth Proportional to 639,862.17, 883,004.38 and 353,376.11

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Solution

The fourth proportional to 639,862.17, 883,004.38 and 353,376.11 is: 487,656.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,862.17 : 883,004.38 = 353,376.11 : x
  2. Step 2: Convert to fraction form
    639,862.17/883,004.38 = 353,376.11/x
  3. Step 3: Cross multiply
    639,862.17x = 883,004.38 × 353,376.11
  4. Step 4: Simplify right side
    639,862.17x = 312,032,649,772.09
  5. Step 5: Solve for x
    x = 312,032,649,772.09/639,862.17
  6. Step 6: Final answer
    x = 487,656.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.