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Finding the Fourth Proportional to 359,474.15, 498,171.41 and 354,400.31

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Solution

The fourth proportional to 359,474.15, 498,171.41 and 354,400.31 is: 491,139.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,474.15 : 498,171.41 = 354,400.31 : x
  2. Step 2: Convert to fraction form
    359,474.15/498,171.41 = 354,400.31/x
  3. Step 3: Cross multiply
    359,474.15x = 498,171.41 × 354,400.31
  4. Step 4: Simplify right side
    359,474.15x = 176,552,104,933.07
  5. Step 5: Solve for x
    x = 176,552,104,933.07/359,474.15
  6. Step 6: Final answer
    x = 491,139.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.