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Finding the Fourth Proportional to 304,294.20, 456,441.30 and 135,814.20

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Solution

The fourth proportional to 304,294.20, 456,441.30 and 135,814.20 is: 203,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,294.20 : 456,441.30 = 135,814.20 : x
  2. Step 2: Convert to fraction form
    304,294.20/456,441.30 = 135,814.20/x
  3. Step 3: Cross multiply
    304,294.20x = 456,441.30 × 135,814.20
  4. Step 4: Simplify right side
    304,294.20x = 61,991,210,006.46
  5. Step 5: Solve for x
    x = 61,991,210,006.46/304,294.20
  6. Step 6: Final answer
    x = 203,721.30

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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.