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Finding the Fourth Proportional to 788,243.08, 1,087,776.42 and 448,711

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Solution

The fourth proportional to 788,243.08, 1,087,776.42 and 448,711 is: 619,221.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,243.08 : 1,087,776.42 = 448,711 : x
  2. Step 2: Convert to fraction form
    788,243.08/1,087,776.42 = 448,711/x
  3. Step 3: Cross multiply
    788,243.08x = 1,087,776.42 × 448,711
  4. Step 4: Simplify right side
    788,243.08x = 488,097,245,194.62
  5. Step 5: Solve for x
    x = 488,097,245,194.62/788,243.08
  6. Step 6: Final answer
    x = 619,221.73

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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.