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Finding the Fourth Proportional to 1,743,893.64, 2,615,890.14 and 481,721.40

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Solution

The fourth proportional to 1,743,893.64, 2,615,890.14 and 481,721.40 is: 722,595.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,743,893.64 : 2,615,890.14 = 481,721.40 : x
  2. Step 2: Convert to fraction form
    1,743,893.64/2,615,890.14 = 481,721.40/x
  3. Step 3: Cross multiply
    1,743,893.64x = 2,615,890.14 × 481,721.40
  4. Step 4: Simplify right side
    1,743,893.64x = 1,260,130,260,487.00
  5. Step 5: Solve for x
    x = 1,260,130,260,487.00/1,743,893.64
  6. Step 6: Final answer
    x = 722,595.82

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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.