Home / 819,332.20-1,228,998.30-653,444.20

Finding the Fourth Proportional to 819,332.20, 1,228,998.30 and 653,444.20

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Solution

The fourth proportional to 819,332.20, 1,228,998.30 and 653,444.20 is: 980,166.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,332.20 : 1,228,998.30 = 653,444.20 : x
  2. Step 2: Convert to fraction form
    819,332.20/1,228,998.30 = 653,444.20/x
  3. Step 3: Cross multiply
    819,332.20x = 1,228,998.30 × 653,444.20
  4. Step 4: Simplify right side
    819,332.20x = 803,081,810,944.86
  5. Step 5: Solve for x
    x = 803,081,810,944.86/819,332.20
  6. Step 6: Final answer
    x = 980,166.30

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Double scale
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Similar ratio
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1.5x scale

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.