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Finding the Fourth Proportional to 318,597.72, 439,664.97 and 175,356.74

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Solution

The fourth proportional to 318,597.72, 439,664.97 and 175,356.74 is: 241,992.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,597.72 : 439,664.97 = 175,356.74 : x
  2. Step 2: Convert to fraction form
    318,597.72/439,664.97 = 175,356.74/x
  3. Step 3: Cross multiply
    318,597.72x = 439,664.97 × 175,356.74
  4. Step 4: Simplify right side
    318,597.72x = 77,098,213,633.07
  5. Step 5: Solve for x
    x = 77,098,213,633.07/318,597.72
  6. Step 6: Final answer
    x = 241,992.36

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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.