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Finding the Fourth Proportional to 319,101.62, 440,340.45 and 175,853.66

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Solution

The fourth proportional to 319,101.62, 440,340.45 and 175,853.66 is: 242,667.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,101.62 : 440,340.45 = 175,853.66 : x
  2. Step 2: Convert to fraction form
    319,101.62/440,340.45 = 175,853.66/x
  3. Step 3: Cross multiply
    319,101.62x = 440,340.45 × 175,853.66
  4. Step 4: Simplify right side
    319,101.62x = 77,435,479,778.55
  5. Step 5: Solve for x
    x = 77,435,479,778.55/319,101.62
  6. Step 6: Final answer
    x = 242,667.15

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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.