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Finding the Fourth Proportional to 319,217.84, 440,523.60 and 175,983.02

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Solution

The fourth proportional to 319,217.84, 440,523.60 and 175,983.02 is: 242,858.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,217.84 : 440,523.60 = 175,983.02 : x
  2. Step 2: Convert to fraction form
    319,217.84/440,523.60 = 175,983.02/x
  3. Step 3: Cross multiply
    319,217.84x = 440,523.60 × 175,983.02
  4. Step 4: Simplify right side
    319,217.84x = 77,524,673,509.27
  5. Step 5: Solve for x
    x = 77,524,673,509.27/319,217.84
  6. Step 6: Final answer
    x = 242,858.21

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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.