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Finding the Fourth Proportional to 610,620.16, 843,073.68 and 381,526.96

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Solution

The fourth proportional to 610,620.16, 843,073.68 and 381,526.96 is: 526,768.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,620.16 : 843,073.68 = 381,526.96 : x
  2. Step 2: Convert to fraction form
    610,620.16/843,073.68 = 381,526.96/x
  3. Step 3: Cross multiply
    610,620.16x = 843,073.68 × 381,526.96
  4. Step 4: Simplify right side
    610,620.16x = 321,655,338,186.41
  5. Step 5: Solve for x
    x = 321,655,338,186.41/610,620.16
  6. Step 6: Final answer
    x = 526,768.29

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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.