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Finding the Fourth Proportional to 318,464.76, 439,472.28 and 175,224.88

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Solution

The fourth proportional to 318,464.76, 439,472.28 and 175,224.88 is: 241,805.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,464.76 : 439,472.28 = 175,224.88 : x
  2. Step 2: Convert to fraction form
    318,464.76/439,472.28 = 175,224.88/x
  3. Step 3: Cross multiply
    318,464.76x = 439,472.28 × 175,224.88
  4. Step 4: Simplify right side
    318,464.76x = 77,006,477,526.33
  5. Step 5: Solve for x
    x = 77,006,477,526.33/318,464.76
  6. Step 6: Final answer
    x = 241,805.33

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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.