Home / 709,624.28-979,296.54-403,690.52

Finding the Fourth Proportional to 709,624.28, 979,296.54 and 403,690.52

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Solution

The fourth proportional to 709,624.28, 979,296.54 and 403,690.52 is: 557,101.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,624.28 : 979,296.54 = 403,690.52 : x
  2. Step 2: Convert to fraction form
    709,624.28/979,296.54 = 403,690.52/x
  3. Step 3: Cross multiply
    709,624.28x = 979,296.54 × 403,690.52
  4. Step 4: Simplify right side
    709,624.28x = 395,332,729,466.80
  5. Step 5: Solve for x
    x = 395,332,729,466.80/709,624.28
  6. Step 6: Final answer
    x = 557,101.47

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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.