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Finding the Fourth Proportional to 412,324.10, 618,486.15 and 368,000.90

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Solution

The fourth proportional to 412,324.10, 618,486.15 and 368,000.90 is: 552,001.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,324.10 : 618,486.15 = 368,000.90 : x
  2. Step 2: Convert to fraction form
    412,324.10/618,486.15 = 368,000.90/x
  3. Step 3: Cross multiply
    412,324.10x = 618,486.15 × 368,000.90
  4. Step 4: Simplify right side
    412,324.10x = 227,603,459,837.54
  5. Step 5: Solve for x
    x = 227,603,459,837.54/412,324.10
  6. Step 6: Final answer
    x = 552,001.35

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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.