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Finding the Fourth Proportional to 532,810.80, 799,313.40 and 217,299.60

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Solution

The fourth proportional to 532,810.80, 799,313.40 and 217,299.60 is: 325,989.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,810.80 : 799,313.40 = 217,299.60 : x
  2. Step 2: Convert to fraction form
    532,810.80/799,313.40 = 217,299.60/x
  3. Step 3: Cross multiply
    532,810.80x = 799,313.40 × 217,299.60
  4. Step 4: Simplify right side
    532,810.80x = 173,690,482,094.64
  5. Step 5: Solve for x
    x = 173,690,482,094.64/532,810.80
  6. Step 6: Final answer
    x = 325,989.04

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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.