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Finding the Fourth Proportional to 492,298.31, 679,371.67 and 265,943.81

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Solution

The fourth proportional to 492,298.31, 679,371.67 and 265,943.81 is: 367,002.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,298.31 : 679,371.67 = 265,943.81 : x
  2. Step 2: Convert to fraction form
    492,298.31/679,371.67 = 265,943.81/x
  3. Step 3: Cross multiply
    492,298.31x = 679,371.67 × 265,943.81
  4. Step 4: Simplify right side
    492,298.31x = 180,674,692,356.72
  5. Step 5: Solve for x
    x = 180,674,692,356.72/492,298.31
  6. Step 6: Final answer
    x = 367,002.46

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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.