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Finding the Fourth Proportional to 1,199,534.98, 1,799,395.42 and 400,819.30

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Solution

The fourth proportional to 1,199,534.98, 1,799,395.42 and 400,819.30 is: 601,260.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199,534.98 : 1,799,395.42 = 400,819.30 : x
  2. Step 2: Convert to fraction form
    1,199,534.98/1,799,395.42 = 400,819.30/x
  3. Step 3: Cross multiply
    1,199,534.98x = 1,799,395.42 × 400,819.30
  4. Step 4: Simplify right side
    1,199,534.98x = 721,232,412,667.61
  5. Step 5: Solve for x
    x = 721,232,412,667.61/1,199,534.98
  6. Step 6: Final answer
    x = 601,260.01

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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.