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Finding the Fourth Proportional to 499,707.77, 749,382.44 and 144,648.32

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Solution

The fourth proportional to 499,707.77, 749,382.44 and 144,648.32 is: 216,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,707.77 : 749,382.44 = 144,648.32 : x
  2. Step 2: Convert to fraction form
    499,707.77/749,382.44 = 144,648.32/x
  3. Step 3: Cross multiply
    499,707.77x = 749,382.44 × 144,648.32
  4. Step 4: Simplify right side
    499,707.77x = 108,396,906,513.35
  5. Step 5: Solve for x
    x = 108,396,906,513.35/499,707.77
  6. Step 6: Final answer
    x = 216,920.60

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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.