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Finding the Fourth Proportional to 318,552.82, 439,600.20 and 180,758.08

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Solution

The fourth proportional to 318,552.82, 439,600.20 and 180,758.08 is: 249,444.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,552.82 : 439,600.20 = 180,758.08 : x
  2. Step 2: Convert to fraction form
    318,552.82/439,600.20 = 180,758.08/x
  3. Step 3: Cross multiply
    318,552.82x = 439,600.20 × 180,758.08
  4. Step 4: Simplify right side
    318,552.82x = 79,461,288,119.62
  5. Step 5: Solve for x
    x = 79,461,288,119.62/318,552.82
  6. Step 6: Final answer
    x = 249,444.62

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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.