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Finding the Fourth Proportional to 487,209.68, 730,182.48 and 216,953.26

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Solution

The fourth proportional to 487,209.68, 730,182.48 and 216,953.26 is: 325,148.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,209.68 : 730,182.48 = 216,953.26 : x
  2. Step 2: Convert to fraction form
    487,209.68/730,182.48 = 216,953.26/x
  3. Step 3: Cross multiply
    487,209.68x = 730,182.48 × 216,953.26
  4. Step 4: Simplify right side
    487,209.68x = 158,415,469,430.89
  5. Step 5: Solve for x
    x = 158,415,469,430.89/487,209.68
  6. Step 6: Final answer
    x = 325,148.44

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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.