Home / 818,798.50-1,227,697.46-392,464.78

Finding the Fourth Proportional to 818,798.50, 1,227,697.46 and 392,464.78

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Solution

The fourth proportional to 818,798.50, 1,227,697.46 and 392,464.78 is: 588,457.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,798.50 : 1,227,697.46 = 392,464.78 : x
  2. Step 2: Convert to fraction form
    818,798.50/1,227,697.46 = 392,464.78/x
  3. Step 3: Cross multiply
    818,798.50x = 1,227,697.46 × 392,464.78
  4. Step 4: Simplify right side
    818,798.50x = 481,828,013,545.46
  5. Step 5: Solve for x
    x = 481,828,013,545.46/818,798.50
  6. Step 6: Final answer
    x = 588,457.37

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Double scale
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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.