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Finding the Fourth Proportional to 359,775.90, 496,480.86 and 198,628.02

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Solution

The fourth proportional to 359,775.90, 496,480.86 and 198,628.02 is: 274,101.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,775.90 : 496,480.86 = 198,628.02 : x
  2. Step 2: Convert to fraction form
    359,775.90/496,480.86 = 198,628.02/x
  3. Step 3: Cross multiply
    359,775.90x = 496,480.86 × 198,628.02
  4. Step 4: Simplify right side
    359,775.90x = 98,615,010,189.70
  5. Step 5: Solve for x
    x = 98,615,010,189.70/359,775.90
  6. Step 6: Final answer
    x = 274,101.21

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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.