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Finding the Fourth Proportional to 318,653.14, 439,757.14 and 175,411.66

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Solution

The fourth proportional to 318,653.14, 439,757.14 and 175,411.66 is: 242,076.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,653.14 : 439,757.14 = 175,411.66 : x
  2. Step 2: Convert to fraction form
    318,653.14/439,757.14 = 175,411.66/x
  3. Step 3: Cross multiply
    318,653.14x = 439,757.14 × 175,411.66
  4. Step 4: Simplify right side
    318,653.14x = 77,138,529,924.25
  5. Step 5: Solve for x
    x = 77,138,529,924.25/318,653.14
  6. Step 6: Final answer
    x = 242,076.79

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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.