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Finding the Fourth Proportional to 585,395.28, 807,919.74 and 330,741

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Solution

The fourth proportional to 585,395.28, 807,919.74 and 330,741 is: 456,464.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,395.28 : 807,919.74 = 330,741 : x
  2. Step 2: Convert to fraction form
    585,395.28/807,919.74 = 330,741/x
  3. Step 3: Cross multiply
    585,395.28x = 807,919.74 × 330,741
  4. Step 4: Simplify right side
    585,395.28x = 267,212,182,727.34
  5. Step 5: Solve for x
    x = 267,212,182,727.34/585,395.28
  6. Step 6: Final answer
    x = 456,464.53

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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.