Home / 516,919.20-775,404.40-268,087.20

Finding the Fourth Proportional to 516,919.20, 775,404.40 and 268,087.20

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Solution

The fourth proportional to 516,919.20, 775,404.40 and 268,087.20 is: 402,144.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,919.20 : 775,404.40 = 268,087.20 : x
  2. Step 2: Convert to fraction form
    516,919.20/775,404.40 = 268,087.20/x
  3. Step 3: Cross multiply
    516,919.20x = 775,404.40 × 268,087.20
  4. Step 4: Simplify right side
    516,919.20x = 207,875,994,463.68
  5. Step 5: Solve for x
    x = 207,875,994,463.68/516,919.20
  6. Step 6: Final answer
    x = 402,144.08

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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.