Home / 918,206.20-1,377,309.30-619,607.80

Finding the Fourth Proportional to 918,206.20, 1,377,309.30 and 619,607.80

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Solution

The fourth proportional to 918,206.20, 1,377,309.30 and 619,607.80 is: 929,411.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,206.20 : 1,377,309.30 = 619,607.80 : x
  2. Step 2: Convert to fraction form
    918,206.20/1,377,309.30 = 619,607.80/x
  3. Step 3: Cross multiply
    918,206.20x = 1,377,309.30 × 619,607.80
  4. Step 4: Simplify right side
    918,206.20x = 853,391,585,292.54
  5. Step 5: Solve for x
    x = 853,391,585,292.54/918,206.20
  6. Step 6: Final answer
    x = 929,411.70

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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.