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Finding the Fourth Proportional to 448,207.89, 618,526.89 and 247,003.89

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Solution

The fourth proportional to 448,207.89, 618,526.89 and 247,003.89 is: 340,865.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,207.89 : 618,526.89 = 247,003.89 : x
  2. Step 2: Convert to fraction form
    448,207.89/618,526.89 = 247,003.89/x
  3. Step 3: Cross multiply
    448,207.89x = 618,526.89 × 247,003.89
  4. Step 4: Simplify right side
    448,207.89x = 152,778,544,806.97
  5. Step 5: Solve for x
    x = 152,778,544,806.97/448,207.89
  6. Step 6: Final answer
    x = 340,865.37

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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.