Home / 714,845.35-986,486.56-392,560.83

Finding the Fourth Proportional to 714,845.35, 986,486.56 and 392,560.83

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Solution

The fourth proportional to 714,845.35, 986,486.56 and 392,560.83 is: 541,733.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,845.35 : 986,486.56 = 392,560.83 : x
  2. Step 2: Convert to fraction form
    714,845.35/986,486.56 = 392,560.83/x
  3. Step 3: Cross multiply
    714,845.35x = 986,486.56 × 392,560.83
  4. Step 4: Simplify right side
    714,845.35x = 387,255,977,845.01
  5. Step 5: Solve for x
    x = 387,255,977,845.01/714,845.35
  6. Step 6: Final answer
    x = 541,733.93

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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.