Home / 728,111.40-1,092,167.10-652,003.80

Finding the Fourth Proportional to 728,111.40, 1,092,167.10 and 652,003.80

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Solution

The fourth proportional to 728,111.40, 1,092,167.10 and 652,003.80 is: 978,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,111.40 : 1,092,167.10 = 652,003.80 : x
  2. Step 2: Convert to fraction form
    728,111.40/1,092,167.10 = 652,003.80/x
  3. Step 3: Cross multiply
    728,111.40x = 1,092,167.10 × 652,003.80
  4. Step 4: Simplify right side
    728,111.40x = 712,097,099,434.98
  5. Step 5: Solve for x
    x = 712,097,099,434.98/728,111.40
  6. Step 6: Final answer
    x = 978,005.70

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1.5x scale

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.