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Finding the Fourth Proportional to 1,664,437.02, 2,299,274.55 and 1,324,470.30

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Solution

The fourth proportional to 1,664,437.02, 2,299,274.55 and 1,324,470.30 is: 1,829,640.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664,437.02 : 2,299,274.55 = 1,324,470.30 : x
  2. Step 2: Convert to fraction form
    1,664,437.02/2,299,274.55 = 1,324,470.30/x
  3. Step 3: Cross multiply
    1,664,437.02x = 2,299,274.55 × 1,324,470.30
  4. Step 4: Simplify right side
    1,664,437.02x = 3,045,320,853,020.87
  5. Step 5: Solve for x
    x = 3,045,320,853,020.87/1,664,437.02
  6. Step 6: Final answer
    x = 1,829,640.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.