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Finding the Fourth Proportional to 579,803.75, 869,787.67 and 180,484.89

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Solution

The fourth proportional to 579,803.75, 869,787.67 and 180,484.89 is: 270,752.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,803.75 : 869,787.67 = 180,484.89 : x
  2. Step 2: Convert to fraction form
    579,803.75/869,787.67 = 180,484.89/x
  3. Step 3: Cross multiply
    579,803.75x = 869,787.67 × 180,484.89
  4. Step 4: Simplify right side
    579,803.75x = 156,983,531,943.31
  5. Step 5: Solve for x
    x = 156,983,531,943.31/579,803.75
  6. Step 6: Final answer
    x = 270,752.87

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Double scale
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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.