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Finding the Fourth Proportional to 425,915.01, 587,680.92 and 256,160.07

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Solution

The fourth proportional to 425,915.01, 587,680.92 and 256,160.07 is: 353,451.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,915.01 : 587,680.92 = 256,160.07 : x
  2. Step 2: Convert to fraction form
    425,915.01/587,680.92 = 256,160.07/x
  3. Step 3: Cross multiply
    425,915.01x = 587,680.92 × 256,160.07
  4. Step 4: Simplify right side
    425,915.01x = 150,540,385,604.86
  5. Step 5: Solve for x
    x = 150,540,385,604.86/425,915.01
  6. Step 6: Final answer
    x = 353,451.70

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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.