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Finding the Fourth Proportional to 359,728.53, 496,412.36 and 198,580.12

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Solution

The fourth proportional to 359,728.53, 496,412.36 and 198,580.12 is: 274,033.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,728.53 : 496,412.36 = 198,580.12 : x
  2. Step 2: Convert to fraction form
    359,728.53/496,412.36 = 198,580.12/x
  3. Step 3: Cross multiply
    359,728.53x = 496,412.36 × 198,580.12
  4. Step 4: Simplify right side
    359,728.53x = 98,577,626,018.28
  5. Step 5: Solve for x
    x = 98,577,626,018.28/359,728.53
  6. Step 6: Final answer
    x = 274,033.38

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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.