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Finding the Fourth Proportional to 606,678.20, 910,017.30 and 492,516.80

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Solution

The fourth proportional to 606,678.20, 910,017.30 and 492,516.80 is: 738,775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,678.20 : 910,017.30 = 492,516.80 : x
  2. Step 2: Convert to fraction form
    606,678.20/910,017.30 = 492,516.80/x
  3. Step 3: Cross multiply
    606,678.20x = 910,017.30 × 492,516.80
  4. Step 4: Simplify right side
    606,678.20x = 448,198,808,540.64
  5. Step 5: Solve for x
    x = 448,198,808,540.64/606,678.20
  6. Step 6: Final answer
    x = 738,775.20

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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.