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Finding the Fourth Proportional to 359,690.55, 496,370.52 and 196,346.40

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Solution

The fourth proportional to 359,690.55, 496,370.52 and 196,346.40 is: 270,956.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,690.55 : 496,370.52 = 196,346.40 : x
  2. Step 2: Convert to fraction form
    359,690.55/496,370.52 = 196,346.40/x
  3. Step 3: Cross multiply
    359,690.55x = 496,370.52 × 196,346.40
  4. Step 4: Simplify right side
    359,690.55x = 97,460,564,668.13
  5. Step 5: Solve for x
    x = 97,460,564,668.13/359,690.55
  6. Step 6: Final answer
    x = 270,956.70

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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.