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Finding the Fourth Proportional to 372,540.57, 514,091.71 and 211,386.00

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Solution

The fourth proportional to 372,540.57, 514,091.71 and 211,386.00 is: 291,704.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,540.57 : 514,091.71 = 211,386.00 : x
  2. Step 2: Convert to fraction form
    372,540.57/514,091.71 = 211,386.00/x
  3. Step 3: Cross multiply
    372,540.57x = 514,091.71 × 211,386.00
  4. Step 4: Simplify right side
    372,540.57x = 108,671,792,402.14
  5. Step 5: Solve for x
    x = 108,671,792,402.14/372,540.57
  6. Step 6: Final answer
    x = 291,704.59

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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.