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Finding the Fourth Proportional to 439,963.71, 659,923.68 and 240,673.35

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Solution

The fourth proportional to 439,963.71, 659,923.68 and 240,673.35 is: 360,998.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,963.71 : 659,923.68 = 240,673.35 : x
  2. Step 2: Convert to fraction form
    439,963.71/659,923.68 = 240,673.35/x
  3. Step 3: Cross multiply
    439,963.71x = 659,923.68 × 240,673.35
  4. Step 4: Simplify right side
    439,963.71x = 158,826,042,809.93
  5. Step 5: Solve for x
    x = 158,826,042,809.93/439,963.71
  6. Step 6: Final answer
    x = 360,998.05

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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.