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Finding the Fourth Proportional to 492,372.88, 679,474.92 and 266,018.32

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Solution

The fourth proportional to 492,372.88, 679,474.92 and 266,018.32 is: 367,105.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,372.88 : 679,474.92 = 266,018.32 : x
  2. Step 2: Convert to fraction form
    492,372.88/679,474.92 = 266,018.32/x
  3. Step 3: Cross multiply
    492,372.88x = 679,474.92 × 266,018.32
  4. Step 4: Simplify right side
    492,372.88x = 180,752,776,700.53
  5. Step 5: Solve for x
    x = 180,752,776,700.53/492,372.88
  6. Step 6: Final answer
    x = 367,105.47

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1.5x scale

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.