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Finding the Fourth Proportional to 359,421.39, 496,000.11 and 198,286.47

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Solution

The fourth proportional to 359,421.39, 496,000.11 and 198,286.47 is: 273,634.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,421.39 : 496,000.11 = 198,286.47 : x
  2. Step 2: Convert to fraction form
    359,421.39/496,000.11 = 198,286.47/x
  3. Step 3: Cross multiply
    359,421.39x = 496,000.11 × 198,286.47
  4. Step 4: Simplify right side
    359,421.39x = 98,350,110,931.51
  5. Step 5: Solve for x
    x = 98,350,110,931.51/359,421.39
  6. Step 6: Final answer
    x = 273,634.55

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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.