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Finding the Fourth Proportional to 359,693.55, 496,374.66 and 196,349.40

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Solution

The fourth proportional to 359,693.55, 496,374.66 and 196,349.40 is: 270,960.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,693.55 : 496,374.66 = 196,349.40 : x
  2. Step 2: Convert to fraction form
    359,693.55/496,374.66 = 196,349.40/x
  3. Step 3: Cross multiply
    359,693.55x = 496,374.66 × 196,349.40
  4. Step 4: Simplify right side
    359,693.55x = 97,462,866,666.20
  5. Step 5: Solve for x
    x = 97,462,866,666.20/359,693.55
  6. Step 6: Final answer
    x = 270,960.84

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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.