Home / 818,053.20-1,227,135.86-278,089.76

Finding the Fourth Proportional to 818,053.20, 1,227,135.86 and 278,089.76

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Solution

The fourth proportional to 818,053.20, 1,227,135.86 and 278,089.76 is: 417,153.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,053.20 : 1,227,135.86 = 278,089.76 : x
  2. Step 2: Convert to fraction form
    818,053.20/1,227,135.86 = 278,089.76/x
  3. Step 3: Cross multiply
    818,053.20x = 1,227,135.86 × 278,089.76
  4. Step 4: Simplify right side
    818,053.20x = 341,253,916,794.79
  5. Step 5: Solve for x
    x = 341,253,916,794.79/818,053.20
  6. Step 6: Final answer
    x = 417,153.70

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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.