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Finding the Fourth Proportional to 469,665.60, 703,921.05 and 216,594.78

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Solution

The fourth proportional to 469,665.60, 703,921.05 and 216,594.78 is: 324,625.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,665.60 : 703,921.05 = 216,594.78 : x
  2. Step 2: Convert to fraction form
    469,665.60/703,921.05 = 216,594.78/x
  3. Step 3: Cross multiply
    469,665.60x = 703,921.05 × 216,594.78
  4. Step 4: Simplify right side
    469,665.60x = 152,465,624,962.12
  5. Step 5: Solve for x
    x = 152,465,624,962.12/469,665.60
  6. Step 6: Final answer
    x = 324,625.91

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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.