Home / 819,359.20-1,229,038.80-653,471.20

Finding the Fourth Proportional to 819,359.20, 1,229,038.80 and 653,471.20

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Solution

The fourth proportional to 819,359.20, 1,229,038.80 and 653,471.20 is: 980,206.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,359.20 : 1,229,038.80 = 653,471.20 : x
  2. Step 2: Convert to fraction form
    819,359.20/1,229,038.80 = 653,471.20/x
  3. Step 3: Cross multiply
    819,359.20x = 1,229,038.80 × 653,471.20
  4. Step 4: Simplify right side
    819,359.20x = 803,141,459,482.56
  5. Step 5: Solve for x
    x = 803,141,459,482.56/819,359.20
  6. Step 6: Final answer
    x = 980,206.80

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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.