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Finding the Fourth Proportional to 668,082.40, 999,790.80 and 467,461.60

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Solution

The fourth proportional to 668,082.40, 999,790.80 and 467,461.60 is: 699,560.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,082.40 : 999,790.80 = 467,461.60 : x
  2. Step 2: Convert to fraction form
    668,082.40/999,790.80 = 467,461.60/x
  3. Step 3: Cross multiply
    668,082.40x = 999,790.80 × 467,461.60
  4. Step 4: Simplify right side
    668,082.40x = 467,363,807,033.28
  5. Step 5: Solve for x
    x = 467,363,807,033.28/668,082.40
  6. Step 6: Final answer
    x = 699,560.12

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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.