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Finding the Fourth Proportional to 507,934.80, 761,902.20 and 448,885.80

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Solution

The fourth proportional to 507,934.80, 761,902.20 and 448,885.80 is: 673,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,934.80 : 761,902.20 = 448,885.80 : x
  2. Step 2: Convert to fraction form
    507,934.80/761,902.20 = 448,885.80/x
  3. Step 3: Cross multiply
    507,934.80x = 761,902.20 × 448,885.80
  4. Step 4: Simplify right side
    507,934.80x = 342,007,078,568.76
  5. Step 5: Solve for x
    x = 342,007,078,568.76/507,934.80
  6. Step 6: Final answer
    x = 673,328.70

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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.