Home / 866,142.16-1,195,283.92-478,983.78

Finding the Fourth Proportional to 866,142.16, 1,195,283.92 and 478,983.78

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Solution

The fourth proportional to 866,142.16, 1,195,283.92 and 478,983.78 is: 661,001.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,142.16 : 1,195,283.92 = 478,983.78 : x
  2. Step 2: Convert to fraction form
    866,142.16/1,195,283.92 = 478,983.78/x
  3. Step 3: Cross multiply
    866,142.16x = 1,195,283.92 × 478,983.78
  4. Step 4: Simplify right side
    866,142.16x = 572,521,610,174.82
  5. Step 5: Solve for x
    x = 572,521,610,174.82/866,142.16
  6. Step 6: Final answer
    x = 661,001.90

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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.