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Finding the Fourth Proportional to 319,223.72, 440,531.66 and 175,988.88

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Solution

The fourth proportional to 319,223.72, 440,531.66 and 175,988.88 is: 242,866.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,223.72 : 440,531.66 = 175,988.88 : x
  2. Step 2: Convert to fraction form
    319,223.72/440,531.66 = 175,988.88/x
  3. Step 3: Cross multiply
    319,223.72x = 440,531.66 × 175,988.88
  4. Step 4: Simplify right side
    319,223.72x = 77,528,672,568.00
  5. Step 5: Solve for x
    x = 77,528,672,568.00/319,223.72
  6. Step 6: Final answer
    x = 242,866.27

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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.