Home / 968,144.44-1,334,638.72-640,909.12

Finding the Fourth Proportional to 968,144.44, 1,334,638.72 and 640,909.12

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Solution

The fourth proportional to 968,144.44, 1,334,638.72 and 640,909.12 is: 883,527.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    968,144.44 : 1,334,638.72 = 640,909.12 : x
  2. Step 2: Convert to fraction form
    968,144.44/1,334,638.72 = 640,909.12/x
  3. Step 3: Cross multiply
    968,144.44x = 1,334,638.72 × 640,909.12
  4. Step 4: Simplify right side
    968,144.44x = 855,382,127,553.13
  5. Step 5: Solve for x
    x = 855,382,127,553.13/968,144.44
  6. Step 6: Final answer
    x = 883,527.39

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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.