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Finding the Fourth Proportional to 556,156.40, 834,234.60 and 156,810.20

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Solution

The fourth proportional to 556,156.40, 834,234.60 and 156,810.20 is: 235,215.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,156.40 : 834,234.60 = 156,810.20 : x
  2. Step 2: Convert to fraction form
    556,156.40/834,234.60 = 156,810.20/x
  3. Step 3: Cross multiply
    556,156.40x = 834,234.60 × 156,810.20
  4. Step 4: Simplify right side
    556,156.40x = 130,816,494,472.92
  5. Step 5: Solve for x
    x = 130,816,494,472.92/556,156.40
  6. Step 6: Final answer
    x = 235,215.30

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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.