Home / 646,919.46-892,754.89-356,541.38

Finding the Fourth Proportional to 646,919.46, 892,754.89 and 356,541.38

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Solution

The fourth proportional to 646,919.46, 892,754.89 and 356,541.38 is: 492,030.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,919.46 : 892,754.89 = 356,541.38 : x
  2. Step 2: Convert to fraction form
    646,919.46/892,754.89 = 356,541.38/x
  3. Step 3: Cross multiply
    646,919.46x = 892,754.89 × 356,541.38
  4. Step 4: Simplify right side
    646,919.46x = 318,304,058,475.05
  5. Step 5: Solve for x
    x = 318,304,058,475.05/646,919.46
  6. Step 6: Final answer
    x = 492,030.43

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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.