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Finding the Fourth Proportional to 448,220.91, 618,544.85 and 247,016.91

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Solution

The fourth proportional to 448,220.91, 618,544.85 and 247,016.91 is: 340,883.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,220.91 : 618,544.85 = 247,016.91 : x
  2. Step 2: Convert to fraction form
    448,220.91/618,544.85 = 247,016.91/x
  3. Step 3: Cross multiply
    448,220.91x = 618,544.85 × 247,016.91
  4. Step 4: Simplify right side
    448,220.91x = 152,791,038,160.96
  5. Step 5: Solve for x
    x = 152,791,038,160.96/448,220.91
  6. Step 6: Final answer
    x = 340,883.33

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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.