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Finding the Fourth Proportional to 412,817.40, 619,226.10 and 371,483.10

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Solution

The fourth proportional to 412,817.40, 619,226.10 and 371,483.10 is: 557,224.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,817.40 : 619,226.10 = 371,483.10 : x
  2. Step 2: Convert to fraction form
    412,817.40/619,226.10 = 371,483.10/x
  3. Step 3: Cross multiply
    412,817.40x = 619,226.10 × 371,483.10
  4. Step 4: Simplify right side
    412,817.40x = 230,032,031,228.91
  5. Step 5: Solve for x
    x = 230,032,031,228.91/412,817.40
  6. Step 6: Final answer
    x = 557,224.65

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Similar ratio
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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.