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Finding the Fourth Proportional to 950,153.22, 1,311,212 and 520,440.53

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Solution

The fourth proportional to 950,153.22, 1,311,212 and 520,440.53 is: 718,208.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,153.22 : 1,311,212 = 520,440.53 : x
  2. Step 2: Convert to fraction form
    950,153.22/1,311,212 = 520,440.53/x
  3. Step 3: Cross multiply
    950,153.22x = 1,311,212 × 520,440.53
  4. Step 4: Simplify right side
    950,153.22x = 682,407,868,222.36
  5. Step 5: Solve for x
    x = 682,407,868,222.36/950,153.22
  6. Step 6: Final answer
    x = 718,208.24

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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.