Home / 812,182.32-1,120,321.26-521,696.16

Finding the Fourth Proportional to 812,182.32, 1,120,321.26 and 521,696.16

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Solution

The fourth proportional to 812,182.32, 1,120,321.26 and 521,696.16 is: 719,625.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,182.32 : 1,120,321.26 = 521,696.16 : x
  2. Step 2: Convert to fraction form
    812,182.32/1,120,321.26 = 521,696.16/x
  3. Step 3: Cross multiply
    812,182.32x = 1,120,321.26 × 521,696.16
  4. Step 4: Simplify right side
    812,182.32x = 584,467,299,308.36
  5. Step 5: Solve for x
    x = 584,467,299,308.36/812,182.32
  6. Step 6: Final answer
    x = 719,625.74

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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.