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Finding the Fourth Proportional to 492,791.41, 680,053.11 and 266,436.91

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Solution

The fourth proportional to 492,791.41, 680,053.11 and 266,436.91 is: 367,683.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,791.41 : 680,053.11 = 266,436.91 : x
  2. Step 2: Convert to fraction form
    492,791.41/680,053.11 = 266,436.91/x
  3. Step 3: Cross multiply
    492,791.41x = 680,053.11 × 266,436.91
  4. Step 4: Simplify right side
    492,791.41x = 181,191,249,264.29
  5. Step 5: Solve for x
    x = 181,191,249,264.29/492,791.41
  6. Step 6: Final answer
    x = 367,683.46

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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.