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Finding the Fourth Proportional to 492,350.40, 679,443.39 and 265,995.90

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Solution

The fourth proportional to 492,350.40, 679,443.39 and 265,995.90 is: 367,074.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,350.40 : 679,443.39 = 265,995.90 : x
  2. Step 2: Convert to fraction form
    492,350.40/679,443.39 = 265,995.90/x
  3. Step 3: Cross multiply
    492,350.40x = 679,443.39 × 265,995.90
  4. Step 4: Simplify right side
    492,350.40x = 180,729,156,022.10
  5. Step 5: Solve for x
    x = 180,729,156,022.10/492,350.40
  6. Step 6: Final answer
    x = 367,074.25

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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.