Home / 866,156.83-1,195,304.15-478,998.30

Finding the Fourth Proportional to 866,156.83, 1,195,304.15 and 478,998.30

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Solution

The fourth proportional to 866,156.83, 1,195,304.15 and 478,998.30 is: 661,021.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,156.83 : 1,195,304.15 = 478,998.30 : x
  2. Step 2: Convert to fraction form
    866,156.83/1,195,304.15 = 478,998.30/x
  3. Step 3: Cross multiply
    866,156.83x = 1,195,304.15 × 478,998.30
  4. Step 4: Simplify right side
    866,156.83x = 572,548,655,832.95
  5. Step 5: Solve for x
    x = 572,548,655,832.95/866,156.83
  6. Step 6: Final answer
    x = 661,021.93

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Double scale
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1.5x scale

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.