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Finding the Fourth Proportional to 653,240.72, 979,696.64 and 232,418.18

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Solution

The fourth proportional to 653,240.72, 979,696.64 and 232,418.18 is: 348,568.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,240.72 : 979,696.64 = 232,418.18 : x
  2. Step 2: Convert to fraction form
    653,240.72/979,696.64 = 232,418.18/x
  3. Step 3: Cross multiply
    653,240.72x = 979,696.64 × 232,418.18
  4. Step 4: Simplify right side
    653,240.72x = 227,699,303,960.34
  5. Step 5: Solve for x
    x = 227,699,303,960.34/653,240.72
  6. Step 6: Final answer
    x = 348,568.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.