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Finding the Fourth Proportional to 312,516.66, 467,440.01 and 260,911.66

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Solution

The fourth proportional to 312,516.66, 467,440.01 and 260,911.66 is: 390,252.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,516.66 : 467,440.01 = 260,911.66 : x
  2. Step 2: Convert to fraction form
    312,516.66/467,440.01 = 260,911.66/x
  3. Step 3: Cross multiply
    312,516.66x = 467,440.01 × 260,911.66
  4. Step 4: Simplify right side
    312,516.66x = 121,960,548,959.52
  5. Step 5: Solve for x
    x = 121,960,548,959.52/312,516.66
  6. Step 6: Final answer
    x = 390,252.95

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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.