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Finding the Fourth Proportional to 555,446.88, 766,091.45 and 383,652.36

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Solution

The fourth proportional to 555,446.88, 766,091.45 and 383,652.36 is: 529,146.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,446.88 : 766,091.45 = 383,652.36 : x
  2. Step 2: Convert to fraction form
    555,446.88/766,091.45 = 383,652.36/x
  3. Step 3: Cross multiply
    555,446.88x = 766,091.45 × 383,652.36
  4. Step 4: Simplify right side
    555,446.88x = 293,912,792,768.32
  5. Step 5: Solve for x
    x = 293,912,792,768.32/555,446.88
  6. Step 6: Final answer
    x = 529,146.54

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1.5x scale

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.