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Finding the Fourth Proportional to 359,684.20, 496,376.22 and 196,350.40

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Solution

The fourth proportional to 359,684.20, 496,376.22 and 196,350.40 is: 270,970.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,684.20 : 496,376.22 = 196,350.40 : x
  2. Step 2: Convert to fraction form
    359,684.20/496,376.22 = 196,350.40/x
  3. Step 3: Cross multiply
    359,684.20x = 496,376.22 × 196,350.40
  4. Step 4: Simplify right side
    359,684.20x = 97,463,669,347.49
  5. Step 5: Solve for x
    x = 97,463,669,347.49/359,684.20
  6. Step 6: Final answer
    x = 270,970.12

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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.