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Finding the Fourth Proportional to 359,511.90, 496,129.08 and 198,372.90

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Solution

The fourth proportional to 359,511.90, 496,129.08 and 198,372.90 is: 273,756.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,511.90 : 496,129.08 = 198,372.90 : x
  2. Step 2: Convert to fraction form
    359,511.90/496,129.08 = 198,372.90/x
  3. Step 3: Cross multiply
    359,511.90x = 496,129.08 × 198,372.90
  4. Step 4: Simplify right side
    359,511.90x = 98,418,564,373.93
  5. Step 5: Solve for x
    x = 98,418,564,373.93/359,511.90
  6. Step 6: Final answer
    x = 273,756.07

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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.