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Finding the Fourth Proportional to 594,143.28, 891,448.32 and 261,486

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Solution

The fourth proportional to 594,143.28, 891,448.32 and 261,486 is: 392,331.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,143.28 : 891,448.32 = 261,486 : x
  2. Step 2: Convert to fraction form
    594,143.28/891,448.32 = 261,486/x
  3. Step 3: Cross multiply
    594,143.28x = 891,448.32 × 261,486
  4. Step 4: Simplify right side
    594,143.28x = 233,101,255,403.52
  5. Step 5: Solve for x
    x = 233,101,255,403.52/594,143.28
  6. Step 6: Final answer
    x = 392,331.72

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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.