Home / 918,141.20-1,377,211.80-619,542.80

Finding the Fourth Proportional to 918,141.20, 1,377,211.80 and 619,542.80

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Solution

The fourth proportional to 918,141.20, 1,377,211.80 and 619,542.80 is: 929,314.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,141.20 : 1,377,211.80 = 619,542.80 : x
  2. Step 2: Convert to fraction form
    918,141.20/1,377,211.80 = 619,542.80/x
  3. Step 3: Cross multiply
    918,141.20x = 1,377,211.80 × 619,542.80
  4. Step 4: Simplify right side
    918,141.20x = 853,241,654,765.04
  5. Step 5: Solve for x
    x = 853,241,654,765.04/918,141.20
  6. Step 6: Final answer
    x = 929,314.20

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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.