Home / 679,624.39-938,024.35-431,105.59

Finding the Fourth Proportional to 679,624.39, 938,024.35 and 431,105.59

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Solution

The fourth proportional to 679,624.39, 938,024.35 and 431,105.59 is: 595,016.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,624.39 : 938,024.35 = 431,105.59 : x
  2. Step 2: Convert to fraction form
    679,624.39/938,024.35 = 431,105.59/x
  3. Step 3: Cross multiply
    679,624.39x = 938,024.35 × 431,105.59
  4. Step 4: Simplify right side
    679,624.39x = 404,387,540,935.88
  5. Step 5: Solve for x
    x = 404,387,540,935.88/679,624.39
  6. Step 6: Final answer
    x = 595,016.23

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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.