Home / 945,698.40-1,305,400.41-558,515.34

Finding the Fourth Proportional to 945,698.40, 1,305,400.41 and 558,515.34

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Solution

The fourth proportional to 945,698.40, 1,305,400.41 and 558,515.34 is: 770,949.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,698.40 : 1,305,400.41 = 558,515.34 : x
  2. Step 2: Convert to fraction form
    945,698.40/1,305,400.41 = 558,515.34/x
  3. Step 3: Cross multiply
    945,698.40x = 1,305,400.41 × 558,515.34
  4. Step 4: Simplify right side
    945,698.40x = 729,086,153,827.29
  5. Step 5: Solve for x
    x = 729,086,153,827.29/945,698.40
  6. Step 6: Final answer
    x = 770,949.97

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Double scale
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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.