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Finding the Fourth Proportional to 589,586.80, 884,380.20 and 274,658.80

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Solution

The fourth proportional to 589,586.80, 884,380.20 and 274,658.80 is: 411,988.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,586.80 : 884,380.20 = 274,658.80 : x
  2. Step 2: Convert to fraction form
    589,586.80/884,380.20 = 274,658.80/x
  3. Step 3: Cross multiply
    589,586.80x = 884,380.20 × 274,658.80
  4. Step 4: Simplify right side
    589,586.80x = 242,902,804,475.76
  5. Step 5: Solve for x
    x = 242,902,804,475.76/589,586.80
  6. Step 6: Final answer
    x = 411,988.20

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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.