Home / 448,217.78-618,540.54-247,013.78

Finding the Fourth Proportional to 448,217.78, 618,540.54 and 247,013.78

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Solution

The fourth proportional to 448,217.78, 618,540.54 and 247,013.78 is: 340,879.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,217.78 : 618,540.54 = 247,013.78 : x
  2. Step 2: Convert to fraction form
    448,217.78/618,540.54 = 247,013.78/x
  3. Step 3: Cross multiply
    448,217.78x = 618,540.54 × 247,013.78
  4. Step 4: Simplify right side
    448,217.78x = 152,788,038,414.99
  5. Step 5: Solve for x
    x = 152,788,038,414.99/448,217.78
  6. Step 6: Final answer
    x = 340,879.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.