Home / 812,111.07-1,120,833.36-467,881.44

Finding the Fourth Proportional to 812,111.07, 1,120,833.36 and 467,881.44

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Solution

The fourth proportional to 812,111.07, 1,120,833.36 and 467,881.44 is: 645,745.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,111.07 : 1,120,833.36 = 467,881.44 : x
  2. Step 2: Convert to fraction form
    812,111.07/1,120,833.36 = 467,881.44/x
  3. Step 3: Cross multiply
    812,111.07x = 1,120,833.36 × 467,881.44
  4. Step 4: Simplify right side
    812,111.07x = 524,417,126,476.84
  5. Step 5: Solve for x
    x = 524,417,126,476.84/812,111.07
  6. Step 6: Final answer
    x = 645,745.57

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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.