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Finding the Fourth Proportional to 402,371.48, 555,064.44 and 273,316.61

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Solution

The fourth proportional to 402,371.48, 555,064.44 and 273,316.61 is: 377,035.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,371.48 : 555,064.44 = 273,316.61 : x
  2. Step 2: Convert to fraction form
    402,371.48/555,064.44 = 273,316.61/x
  3. Step 3: Cross multiply
    402,371.48x = 555,064.44 × 273,316.61
  4. Step 4: Simplify right side
    402,371.48x = 151,708,331,072.35
  5. Step 5: Solve for x
    x = 151,708,331,072.35/402,371.48
  6. Step 6: Final answer
    x = 377,035.50

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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.