Home / 945,112.60-1,304,231.70-515,401

Finding the Fourth Proportional to 945,112.60, 1,304,231.70 and 515,401

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Solution

The fourth proportional to 945,112.60, 1,304,231.70 and 515,401 is: 711,240.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,112.60 : 1,304,231.70 = 515,401 : x
  2. Step 2: Convert to fraction form
    945,112.60/1,304,231.70 = 515,401/x
  3. Step 3: Cross multiply
    945,112.60x = 1,304,231.70 × 515,401
  4. Step 4: Simplify right side
    945,112.60x = 672,202,322,411.70
  5. Step 5: Solve for x
    x = 672,202,322,411.70/945,112.60
  6. Step 6: Final answer
    x = 711,240.46

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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.