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Finding the Fourth Proportional to 511,058.70, 766,588.05 and 351,626.40

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Solution

The fourth proportional to 511,058.70, 766,588.05 and 351,626.40 is: 527,439.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,058.70 : 766,588.05 = 351,626.40 : x
  2. Step 2: Convert to fraction form
    511,058.70/766,588.05 = 351,626.40/x
  3. Step 3: Cross multiply
    511,058.70x = 766,588.05 × 351,626.40
  4. Step 4: Simplify right side
    511,058.70x = 269,552,596,304.52
  5. Step 5: Solve for x
    x = 269,552,596,304.52/511,058.70
  6. Step 6: Final answer
    x = 527,439.60

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Similar ratio
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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.