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Finding the Fourth Proportional to 895,489.80, 1,343,234.70 and 296,543.40

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Solution

The fourth proportional to 895,489.80, 1,343,234.70 and 296,543.40 is: 444,815.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,489.80 : 1,343,234.70 = 296,543.40 : x
  2. Step 2: Convert to fraction form
    895,489.80/1,343,234.70 = 296,543.40/x
  3. Step 3: Cross multiply
    895,489.80x = 1,343,234.70 × 296,543.40
  4. Step 4: Simplify right side
    895,489.80x = 398,327,384,935.98
  5. Step 5: Solve for x
    x = 398,327,384,935.98/895,489.80
  6. Step 6: Final answer
    x = 444,815.10

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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.