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Finding the Fourth Proportional to 492,378.92, 679,483.14 and 266,024.36

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Solution

The fourth proportional to 492,378.92, 679,483.14 and 266,024.36 is: 367,113.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,378.92 : 679,483.14 = 266,024.36 : x
  2. Step 2: Convert to fraction form
    492,378.92/679,483.14 = 266,024.36/x
  3. Step 3: Cross multiply
    492,378.92x = 679,483.14 × 266,024.36
  4. Step 4: Simplify right side
    492,378.92x = 180,759,067,449.29
  5. Step 5: Solve for x
    x = 180,759,067,449.29/492,378.92
  6. Step 6: Final answer
    x = 367,113.74

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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.