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Finding the Fourth Proportional to 890,064.24, 1,334,691 and 384,384.48

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Solution

The fourth proportional to 890,064.24, 1,334,691 and 384,384.48 is: 576,401.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,064.24 : 1,334,691 = 384,384.48 : x
  2. Step 2: Convert to fraction form
    890,064.24/1,334,691 = 384,384.48/x
  3. Step 3: Cross multiply
    890,064.24x = 1,334,691 × 384,384.48
  4. Step 4: Simplify right side
    890,064.24x = 513,034,505,995.68
  5. Step 5: Solve for x
    x = 513,034,505,995.68/890,064.24
  6. Step 6: Final answer
    x = 576,401.66

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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.