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Finding the Fourth Proportional to 524,892.78, 724,171.05 and 295,403.58

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Solution

The fourth proportional to 524,892.78, 724,171.05 and 295,403.58 is: 407,555.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,892.78 : 724,171.05 = 295,403.58 : x
  2. Step 2: Convert to fraction form
    524,892.78/724,171.05 = 295,403.58/x
  3. Step 3: Cross multiply
    524,892.78x = 724,171.05 × 295,403.58
  4. Step 4: Simplify right side
    524,892.78x = 213,922,720,702.36
  5. Step 5: Solve for x
    x = 213,922,720,702.36/524,892.78
  6. Step 6: Final answer
    x = 407,555.08

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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.