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Finding the Fourth Proportional to 359,531.68, 496,153.14 and 198,386.60

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Solution

The fourth proportional to 359,531.68, 496,153.14 and 198,386.60 is: 273,773.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,531.68 : 496,153.14 = 198,386.60 : x
  2. Step 2: Convert to fraction form
    359,531.68/496,153.14 = 198,386.60/x
  3. Step 3: Cross multiply
    359,531.68x = 496,153.14 × 198,386.60
  4. Step 4: Simplify right side
    359,531.68x = 98,430,134,523.92
  5. Step 5: Solve for x
    x = 98,430,134,523.92/359,531.68
  6. Step 6: Final answer
    x = 273,773.19

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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.