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Finding the Fourth Proportional to 353,428.92, 487,483.50 and 232,531.56

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Solution

The fourth proportional to 353,428.92, 487,483.50 and 232,531.56 is: 320,730.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,428.92 : 487,483.50 = 232,531.56 : x
  2. Step 2: Convert to fraction form
    353,428.92/487,483.50 = 232,531.56/x
  3. Step 3: Cross multiply
    353,428.92x = 487,483.50 × 232,531.56
  4. Step 4: Simplify right side
    353,428.92x = 113,355,298,729.26
  5. Step 5: Solve for x
    x = 113,355,298,729.26/353,428.92
  6. Step 6: Final answer
    x = 320,730.12

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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.