Home / 1,259,225.36-1,737,680.28-686,253.20

Finding the Fourth Proportional to 1,259,225.36, 1,737,680.28 and 686,253.20

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Solution

The fourth proportional to 1,259,225.36, 1,737,680.28 and 686,253.20 is: 947,001.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,225.36 : 1,737,680.28 = 686,253.20 : x
  2. Step 2: Convert to fraction form
    1,259,225.36/1,737,680.28 = 686,253.20/x
  3. Step 3: Cross multiply
    1,259,225.36x = 1,737,680.28 × 686,253.20
  4. Step 4: Simplify right side
    1,259,225.36x = 1,192,488,652,726.90
  5. Step 5: Solve for x
    x = 1,192,488,652,726.90/1,259,225.36
  6. Step 6: Final answer
    x = 947,001.78

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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.