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Finding the Fourth Proportional to 408,821.63, 613,253.63 and 124,490.22

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Solution

The fourth proportional to 408,821.63, 613,253.63 and 124,490.22 is: 186,741.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,821.63 : 613,253.63 = 124,490.22 : x
  2. Step 2: Convert to fraction form
    408,821.63/613,253.63 = 124,490.22/x
  3. Step 3: Cross multiply
    408,821.63x = 613,253.63 × 124,490.22
  4. Step 4: Simplify right side
    408,821.63x = 76,344,077,326.02
  5. Step 5: Solve for x
    x = 76,344,077,326.02/408,821.63
  6. Step 6: Final answer
    x = 186,741.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.