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Finding the Fourth Proportional to 608,048.20, 912,072.30 and 538,064.20

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Solution

The fourth proportional to 608,048.20, 912,072.30 and 538,064.20 is: 807,096.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,048.20 : 912,072.30 = 538,064.20 : x
  2. Step 2: Convert to fraction form
    608,048.20/912,072.30 = 538,064.20/x
  3. Step 3: Cross multiply
    608,048.20x = 912,072.30 × 538,064.20
  4. Step 4: Simplify right side
    608,048.20x = 490,753,452,441.66
  5. Step 5: Solve for x
    x = 490,753,452,441.66/608,048.20
  6. Step 6: Final answer
    x = 807,096.30

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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.