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Finding the Fourth Proportional to 319,153.56, 440,434.98 and 175,919.16

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Solution

The fourth proportional to 319,153.56, 440,434.98 and 175,919.16 is: 242,770.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,153.56 : 440,434.98 = 175,919.16 : x
  2. Step 2: Convert to fraction form
    319,153.56/440,434.98 = 175,919.16/x
  3. Step 3: Cross multiply
    319,153.56x = 440,434.98 × 175,919.16
  4. Step 4: Simplify right side
    319,153.56x = 77,480,951,716.22
  5. Step 5: Solve for x
    x = 77,480,951,716.22/319,153.56
  6. Step 6: Final answer
    x = 242,770.13

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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.