Home / 805,141.32-1,111,153.08-482,845.56

Finding the Fourth Proportional to 805,141.32, 1,111,153.08 and 482,845.56

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Solution

The fourth proportional to 805,141.32, 1,111,153.08 and 482,845.56 is: 666,361.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,141.32 : 1,111,153.08 = 482,845.56 : x
  2. Step 2: Convert to fraction form
    805,141.32/1,111,153.08 = 482,845.56/x
  3. Step 3: Cross multiply
    805,141.32x = 1,111,153.08 × 482,845.56
  4. Step 4: Simplify right side
    805,141.32x = 536,515,331,158.33
  5. Step 5: Solve for x
    x = 536,515,331,158.33/805,141.32
  6. Step 6: Final answer
    x = 666,361.69

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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.