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Finding the Fourth Proportional to 492,342.75, 679,433.00 and 265,988.25

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Solution

The fourth proportional to 492,342.75, 679,433.00 and 265,988.25 is: 367,063.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,342.75 : 679,433.00 = 265,988.25 : x
  2. Step 2: Convert to fraction form
    492,342.75/679,433.00 = 265,988.25/x
  3. Step 3: Cross multiply
    492,342.75x = 679,433.00 × 265,988.25
  4. Step 4: Simplify right side
    492,342.75x = 180,721,193,332.31
  5. Step 5: Solve for x
    x = 180,721,193,332.31/492,342.75
  6. Step 6: Final answer
    x = 367,063.79

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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.