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Finding the Fourth Proportional to 448,890.52, 619,481.90 and 247,699.48

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Solution

The fourth proportional to 448,890.52, 619,481.90 and 247,699.48 is: 341,832.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,890.52 : 619,481.90 = 247,699.48 : x
  2. Step 2: Convert to fraction form
    448,890.52/619,481.90 = 247,699.48/x
  3. Step 3: Cross multiply
    448,890.52x = 619,481.90 × 247,699.48
  4. Step 4: Simplify right side
    448,890.52x = 153,445,344,499.41
  5. Step 5: Solve for x
    x = 153,445,344,499.41/448,890.52
  6. Step 6: Final answer
    x = 341,832.45

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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.