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Finding the Fourth Proportional to 359,705.39, 496,393.76 and 198,560.28

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Solution

The fourth proportional to 359,705.39, 496,393.76 and 198,560.28 is: 274,013.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,705.39 : 496,393.76 = 198,560.28 : x
  2. Step 2: Convert to fraction form
    359,705.39/496,393.76 = 198,560.28/x
  3. Step 3: Cross multiply
    359,705.39x = 496,393.76 × 198,560.28
  4. Step 4: Simplify right side
    359,705.39x = 98,564,083,975.85
  5. Step 5: Solve for x
    x = 98,564,083,975.85/359,705.39
  6. Step 6: Final answer
    x = 274,013.36

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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.