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Finding the Fourth Proportional to 764,374.08, 1,054,872 and 424,848

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Solution

The fourth proportional to 764,374.08, 1,054,872 and 424,848 is: 586,310.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,374.08 : 1,054,872 = 424,848 : x
  2. Step 2: Convert to fraction form
    764,374.08/1,054,872 = 424,848/x
  3. Step 3: Cross multiply
    764,374.08x = 1,054,872 × 424,848
  4. Step 4: Simplify right side
    764,374.08x = 448,160,259,456
  5. Step 5: Solve for x
    x = 448,160,259,456/764,374.08
  6. Step 6: Final answer
    x = 586,310.12

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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.