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Finding the Fourth Proportional to 359,459.43, 496,050.59 and 198,315.78

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Solution

The fourth proportional to 359,459.43, 496,050.59 and 198,315.78 is: 273,673.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,459.43 : 496,050.59 = 198,315.78 : x
  2. Step 2: Convert to fraction form
    359,459.43/496,050.59 = 198,315.78/x
  3. Step 3: Cross multiply
    359,459.43x = 496,050.59 × 198,315.78
  4. Step 4: Simplify right side
    359,459.43x = 98,374,659,675.31
  5. Step 5: Solve for x
    x = 98,374,659,675.31/359,459.43
  6. Step 6: Final answer
    x = 273,673.89

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Double scale
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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.