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Finding the Fourth Proportional to 788,325.12, 1,087,872 and 448,788.48

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Solution

The fourth proportional to 788,325.12, 1,087,872 and 448,788.48 is: 619,318.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,325.12 : 1,087,872 = 448,788.48 : x
  2. Step 2: Convert to fraction form
    788,325.12/1,087,872 = 448,788.48/x
  3. Step 3: Cross multiply
    788,325.12x = 1,087,872 × 448,788.48
  4. Step 4: Simplify right side
    788,325.12x = 488,224,421,314.56
  5. Step 5: Solve for x
    x = 488,224,421,314.56/788,325.12
  6. Step 6: Final answer
    x = 619,318.61

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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.