Home / 677,982.66-935,607.60-391,496.46

Finding the Fourth Proportional to 677,982.66, 935,607.60 and 391,496.46

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Solution

The fourth proportional to 677,982.66, 935,607.60 and 391,496.46 is: 540,260.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,982.66 : 935,607.60 = 391,496.46 : x
  2. Step 2: Convert to fraction form
    677,982.66/935,607.60 = 391,496.46/x
  3. Step 3: Cross multiply
    677,982.66x = 935,607.60 × 391,496.46
  4. Step 4: Simplify right side
    677,982.66x = 366,287,063,349.10
  5. Step 5: Solve for x
    x = 366,287,063,349.10/677,982.66
  6. Step 6: Final answer
    x = 540,260.22

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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.