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Finding the Fourth Proportional to 318,657, 439,775.94 and 175,446.12

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Solution

The fourth proportional to 318,657, 439,775.94 and 175,446.12 is: 242,131.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,657 : 439,775.94 = 175,446.12 : x
  2. Step 2: Convert to fraction form
    318,657/439,775.94 = 175,446.12/x
  3. Step 3: Cross multiply
    318,657x = 439,775.94 × 175,446.12
  4. Step 4: Simplify right side
    318,657x = 77,156,982,342.35
  5. Step 5: Solve for x
    x = 77,156,982,342.35/318,657
  6. Step 6: Final answer
    x = 242,131.77

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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.