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Finding the Fourth Proportional to 359,799.98, 496,521.70 and 198,653.61

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Solution

The fourth proportional to 359,799.98, 496,521.70 and 198,653.61 is: 274,140.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,799.98 : 496,521.70 = 198,653.61 : x
  2. Step 2: Convert to fraction form
    359,799.98/496,521.70 = 198,653.61/x
  3. Step 3: Cross multiply
    359,799.98x = 496,521.70 × 198,653.61
  4. Step 4: Simplify right side
    359,799.98x = 98,635,829,513.66
  5. Step 5: Solve for x
    x = 98,635,829,513.66/359,799.98
  6. Step 6: Final answer
    x = 274,140.73

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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.