Home / 318,467.20-439,479.68-175,218.56

Finding the Fourth Proportional to 318,467.20, 439,479.68 and 175,218.56

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Solution

The fourth proportional to 318,467.20, 439,479.68 and 175,218.56 is: 241,798.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,467.20 : 439,479.68 = 175,218.56 : x
  2. Step 2: Convert to fraction form
    318,467.20/439,479.68 = 175,218.56/x
  3. Step 3: Cross multiply
    318,467.20x = 439,479.68 × 175,218.56
  4. Step 4: Simplify right side
    318,467.20x = 77,004,996,678.86
  5. Step 5: Solve for x
    x = 77,004,996,678.86/318,467.20
  6. Step 6: Final answer
    x = 241,798.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.