Home / 866,233.60-1,299,326.10-392,918.20

Finding the Fourth Proportional to 866,233.60, 1,299,326.10 and 392,918.20

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Solution

The fourth proportional to 866,233.60, 1,299,326.10 and 392,918.20 is: 589,366.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,233.60 : 1,299,326.10 = 392,918.20 : x
  2. Step 2: Convert to fraction form
    866,233.60/1,299,326.10 = 392,918.20/x
  3. Step 3: Cross multiply
    866,233.60x = 1,299,326.10 × 392,918.20
  4. Step 4: Simplify right side
    866,233.60x = 510,528,872,425.02
  5. Step 5: Solve for x
    x = 510,528,872,425.02/866,233.60
  6. Step 6: Final answer
    x = 589,366.28

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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.