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Finding the Fourth Proportional to 372,990.02, 514,719.24 and 207,428.13

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Solution

The fourth proportional to 372,990.02, 514,719.24 and 207,428.13 is: 286,246.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,990.02 : 514,719.24 = 207,428.13 : x
  2. Step 2: Convert to fraction form
    372,990.02/514,719.24 = 207,428.13/x
  3. Step 3: Cross multiply
    372,990.02x = 514,719.24 × 207,428.13
  4. Step 4: Simplify right side
    372,990.02x = 106,767,248,650.37
  5. Step 5: Solve for x
    x = 106,767,248,650.37/372,990.02
  6. Step 6: Final answer
    x = 286,246.94

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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.