Home / 866,141.16-1,195,282.54-478,982.78

Finding the Fourth Proportional to 866,141.16, 1,195,282.54 and 478,982.78

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Solution

The fourth proportional to 866,141.16, 1,195,282.54 and 478,982.78 is: 661,000.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,141.16 : 1,195,282.54 = 478,982.78 : x
  2. Step 2: Convert to fraction form
    866,141.16/1,195,282.54 = 478,982.78/x
  3. Step 3: Cross multiply
    866,141.16x = 1,195,282.54 × 478,982.78
  4. Step 4: Simplify right side
    866,141.16x = 572,519,748,624.14
  5. Step 5: Solve for x
    x = 572,519,748,624.14/866,141.16
  6. Step 6: Final answer
    x = 661,000.51

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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.