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Finding the Fourth Proportional to 448,638.36, 619,103.70 and 247,434.36

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Solution

The fourth proportional to 448,638.36, 619,103.70 and 247,434.36 is: 341,449.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,638.36 : 619,103.70 = 247,434.36 : x
  2. Step 2: Convert to fraction form
    448,638.36/619,103.70 = 247,434.36/x
  3. Step 3: Cross multiply
    448,638.36x = 619,103.70 × 247,434.36
  4. Step 4: Simplify right side
    448,638.36x = 153,187,527,783.13
  5. Step 5: Solve for x
    x = 153,187,527,783.13/448,638.36
  6. Step 6: Final answer
    x = 341,449.91

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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.