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Finding the Fourth Proportional to 674,392.47, 930,650.61 and 368,462.27

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Solution

The fourth proportional to 674,392.47, 930,650.61 and 368,462.27 is: 508,471.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,392.47 : 930,650.61 = 368,462.27 : x
  2. Step 2: Convert to fraction form
    674,392.47/930,650.61 = 368,462.27/x
  3. Step 3: Cross multiply
    674,392.47x = 930,650.61 × 368,462.27
  4. Step 4: Simplify right side
    674,392.47x = 342,909,640,045.85
  5. Step 5: Solve for x
    x = 342,909,640,045.85/674,392.47
  6. Step 6: Final answer
    x = 508,471.93

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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.