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Finding the Fourth Proportional to 372,478.66, 514,004.61 and 202,712.38

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Solution

The fourth proportional to 372,478.66, 514,004.61 and 202,712.38 is: 279,734.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,478.66 : 514,004.61 = 202,712.38 : x
  2. Step 2: Convert to fraction form
    372,478.66/514,004.61 = 202,712.38/x
  3. Step 3: Cross multiply
    372,478.66x = 514,004.61 × 202,712.38
  4. Step 4: Simplify right side
    372,478.66x = 104,195,097,824.07
  5. Step 5: Solve for x
    x = 104,195,097,824.07/372,478.66
  6. Step 6: Final answer
    x = 279,734.41

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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.