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Finding the Fourth Proportional to 448,861.50, 619,441.83 and 247,670.46

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Solution

The fourth proportional to 448,861.50, 619,441.83 and 247,670.46 is: 341,792.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,861.50 : 619,441.83 = 247,670.46 : x
  2. Step 2: Convert to fraction form
    448,861.50/619,441.83 = 247,670.46/x
  3. Step 3: Cross multiply
    448,861.50x = 619,441.83 × 247,670.46
  4. Step 4: Simplify right side
    448,861.50x = 153,417,442,979.34
  5. Step 5: Solve for x
    x = 153,417,442,979.34/448,861.50
  6. Step 6: Final answer
    x = 341,792.39

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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.