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Finding the Fourth Proportional to 555,193.20, 832,665.16 and 255,385.84

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Solution

The fourth proportional to 555,193.20, 832,665.16 and 255,385.84 is: 383,021.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,193.20 : 832,665.16 = 255,385.84 : x
  2. Step 2: Convert to fraction form
    555,193.20/832,665.16 = 255,385.84/x
  3. Step 3: Cross multiply
    555,193.20x = 832,665.16 × 255,385.84
  4. Step 4: Simplify right side
    555,193.20x = 212,650,891,325.33
  5. Step 5: Solve for x
    x = 212,650,891,325.33/555,193.20
  6. Step 6: Final answer
    x = 383,021.43

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1.5x scale

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.