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Finding the Fourth Proportional to 536,761.80, 805,142.70 and 162,803.40

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Solution

The fourth proportional to 536,761.80, 805,142.70 and 162,803.40 is: 244,205.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,761.80 : 805,142.70 = 162,803.40 : x
  2. Step 2: Convert to fraction form
    536,761.80/805,142.70 = 162,803.40/x
  3. Step 3: Cross multiply
    536,761.80x = 805,142.70 × 162,803.40
  4. Step 4: Simplify right side
    536,761.80x = 131,079,969,045.18
  5. Step 5: Solve for x
    x = 131,079,969,045.18/536,761.80
  6. Step 6: Final answer
    x = 244,205.10

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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.