Home / 868,347.15-1,198,305.95-486,387.60

Finding the Fourth Proportional to 868,347.15, 1,198,305.95 and 486,387.60

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Solution

The fourth proportional to 868,347.15, 1,198,305.95 and 486,387.60 is: 671,207.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,347.15 : 1,198,305.95 = 486,387.60 : x
  2. Step 2: Convert to fraction form
    868,347.15/1,198,305.95 = 486,387.60/x
  3. Step 3: Cross multiply
    868,347.15x = 1,198,305.95 × 486,387.60
  4. Step 4: Simplify right side
    868,347.15x = 582,841,152,654.28
  5. Step 5: Solve for x
    x = 582,841,152,654.28/868,347.15
  6. Step 6: Final answer
    x = 671,207.54

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Double scale
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1.5x scale

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.