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Finding the Fourth Proportional to 350,578.29, 484,615.31 and 312,713.12

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Solution

The fourth proportional to 350,578.29, 484,615.31 and 312,713.12 is: 432,273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,578.29 : 484,615.31 = 312,713.12 : x
  2. Step 2: Convert to fraction form
    350,578.29/484,615.31 = 312,713.12/x
  3. Step 3: Cross multiply
    350,578.29x = 484,615.31 × 312,713.12
  4. Step 4: Simplify right side
    350,578.29x = 151,545,565,589.87
  5. Step 5: Solve for x
    x = 151,545,565,589.87/350,578.29
  6. Step 6: Final answer
    x = 432,273.10

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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.