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Finding the Fourth Proportional to 448,636.86, 619,101.63 and 247,432.86

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Solution

The fourth proportional to 448,636.86, 619,101.63 and 247,432.86 is: 341,447.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,636.86 : 619,101.63 = 247,432.86 : x
  2. Step 2: Convert to fraction form
    448,636.86/619,101.63 = 247,432.86/x
  3. Step 3: Cross multiply
    448,636.86x = 619,101.63 × 247,432.86
  4. Step 4: Simplify right side
    448,636.86x = 153,186,086,941.56
  5. Step 5: Solve for x
    x = 153,186,086,941.56/448,636.86
  6. Step 6: Final answer
    x = 341,447.84

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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.