Home / 945,573.30-1,304,865.26-515,853.32

Finding the Fourth Proportional to 945,573.30, 1,304,865.26 and 515,853.32

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Solution

The fourth proportional to 945,573.30, 1,304,865.26 and 515,853.32 is: 711,863.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,573.30 : 1,304,865.26 = 515,853.32 : x
  2. Step 2: Convert to fraction form
    945,573.30/1,304,865.26 = 515,853.32/x
  3. Step 3: Cross multiply
    945,573.30x = 1,304,865.26 × 515,853.32
  4. Step 4: Simplify right side
    945,573.30x = 673,119,076,523.66
  5. Step 5: Solve for x
    x = 673,119,076,523.66/945,573.30
  6. Step 6: Final answer
    x = 711,863.46

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Double scale
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Similar ratio
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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.