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Finding the Fourth Proportional to 885,741,337.20, 1,328,612,005.80 and 656,158,825.20

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Solution

The fourth proportional to 885,741,337.20, 1,328,612,005.80 and 656,158,825.20 is: 984,238,237.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,741,337.20 : 1,328,612,005.80 = 656,158,825.20 : x
  2. Step 2: Convert to fraction form
    885,741,337.20/1,328,612,005.80 = 656,158,825.20/x
  3. Step 3: Cross multiply
    885,741,337.20x = 1,328,612,005.80 × 656,158,825.20
  4. Step 4: Simplify right side
    885,741,337.20x = 871,780,492,872,343,680
  5. Step 5: Solve for x
    x = 871,780,492,872,343,680/885,741,337.20
  6. Step 6: Final answer
    x = 984,238,237.80

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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.