Home / 677,768.46-935,216.33-391,233.20

Finding the Fourth Proportional to 677,768.46, 935,216.33 and 391,233.20

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Solution

The fourth proportional to 677,768.46, 935,216.33 and 391,233.20 is: 539,841.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,768.46 : 935,216.33 = 391,233.20 : x
  2. Step 2: Convert to fraction form
    677,768.46/935,216.33 = 391,233.20/x
  3. Step 3: Cross multiply
    677,768.46x = 935,216.33 × 391,233.20
  4. Step 4: Simplify right side
    677,768.46x = 365,887,670,845.91
  5. Step 5: Solve for x
    x = 365,887,670,845.91/677,768.46
  6. Step 6: Final answer
    x = 539,841.69

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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.