Home / 714,204.24-985,568.72-391,906.32

Finding the Fourth Proportional to 714,204.24, 985,568.72 and 391,906.32

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Solution

The fourth proportional to 714,204.24, 985,568.72 and 391,906.32 is: 540,812.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,204.24 : 985,568.72 = 391,906.32 : x
  2. Step 2: Convert to fraction form
    714,204.24/985,568.72 = 391,906.32/x
  3. Step 3: Cross multiply
    714,204.24x = 985,568.72 × 391,906.32
  4. Step 4: Simplify right side
    714,204.24x = 386,250,610,162.31
  5. Step 5: Solve for x
    x = 386,250,610,162.31/714,204.24
  6. Step 6: Final answer
    x = 540,812.54

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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.