Home / 865,400.40-1,298,100.60-626,251.95

Finding the Fourth Proportional to 865,400.40, 1,298,100.60 and 626,251.95

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Solution

The fourth proportional to 865,400.40, 1,298,100.60 and 626,251.95 is: 939,377.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,400.40 : 1,298,100.60 = 626,251.95 : x
  2. Step 2: Convert to fraction form
    865,400.40/1,298,100.60 = 626,251.95/x
  3. Step 3: Cross multiply
    865,400.40x = 1,298,100.60 × 626,251.95
  4. Step 4: Simplify right side
    865,400.40x = 812,938,032,046.17
  5. Step 5: Solve for x
    x = 812,938,032,046.17/865,400.40
  6. Step 6: Final answer
    x = 939,377.93

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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.