Home / 945,115.60-1,304,235.84-515,404

Finding the Fourth Proportional to 945,115.60, 1,304,235.84 and 515,404

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Solution

The fourth proportional to 945,115.60, 1,304,235.84 and 515,404 is: 711,244.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,115.60 : 1,304,235.84 = 515,404 : x
  2. Step 2: Convert to fraction form
    945,115.60/1,304,235.84 = 515,404/x
  3. Step 3: Cross multiply
    945,115.60x = 1,304,235.84 × 515,404
  4. Step 4: Simplify right side
    945,115.60x = 672,208,368,879.36
  5. Step 5: Solve for x
    x = 672,208,368,879.36/945,115.60
  6. Step 6: Final answer
    x = 711,244.60

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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.