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Finding the Fourth Proportional to 671,787.72, 925,986.54 and 453,928.35

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Solution

The fourth proportional to 671,787.72, 925,986.54 and 453,928.35 is: 625,691.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,787.72 : 925,986.54 = 453,928.35 : x
  2. Step 2: Convert to fraction form
    671,787.72/925,986.54 = 453,928.35/x
  3. Step 3: Cross multiply
    671,787.72x = 925,986.54 × 453,928.35
  4. Step 4: Simplify right side
    671,787.72x = 420,331,542,224.41
  5. Step 5: Solve for x
    x = 420,331,542,224.41/671,787.72
  6. Step 6: Final answer
    x = 625,691.02

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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.