Home / 945,503.64-1,304,799.30-515,782.44

Finding the Fourth Proportional to 945,503.64, 1,304,799.30 and 515,782.44

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Solution

The fourth proportional to 945,503.64, 1,304,799.30 and 515,782.44 is: 711,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,503.64 : 1,304,799.30 = 515,782.44 : x
  2. Step 2: Convert to fraction form
    945,503.64/1,304,799.30 = 515,782.44/x
  3. Step 3: Cross multiply
    945,503.64x = 1,304,799.30 × 515,782.44
  4. Step 4: Simplify right side
    945,503.64x = 672,992,566,664.29
  5. Step 5: Solve for x
    x = 672,992,566,664.29/945,503.64
  6. Step 6: Final answer
    x = 711,782.10

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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.