Home / 627,835.68-935,839.11-577,447.20

Finding the Fourth Proportional to 627,835.68, 935,839.11 and 577,447.20

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Solution

The fourth proportional to 627,835.68, 935,839.11 and 577,447.20 is: 860,731.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,835.68 : 935,839.11 = 577,447.20 : x
  2. Step 2: Convert to fraction form
    627,835.68/935,839.11 = 577,447.20/x
  3. Step 3: Cross multiply
    627,835.68x = 935,839.11 × 577,447.20
  4. Step 4: Simplify right side
    627,835.68x = 540,397,673,719.99
  5. Step 5: Solve for x
    x = 540,397,673,719.99/627,835.68
  6. Step 6: Final answer
    x = 860,731.07

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.