Home / 819,322.20-1,226,909.70-653,434.20

Finding the Fourth Proportional to 819,322.20, 1,226,909.70 and 653,434.20

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Solution

The fourth proportional to 819,322.20, 1,226,909.70 and 653,434.20 is: 978,497.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,322.20 : 1,226,909.70 = 653,434.20 : x
  2. Step 2: Convert to fraction form
    819,322.20/1,226,909.70 = 653,434.20/x
  3. Step 3: Cross multiply
    819,322.20x = 1,226,909.70 × 653,434.20
  4. Step 4: Simplify right side
    819,322.20x = 801,704,758,291.74
  5. Step 5: Solve for x
    x = 801,704,758,291.74/819,322.20
  6. Step 6: Final answer
    x = 978,497.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.