Home / 817,997.09-1,128,833.37-455,411.52

Finding the Fourth Proportional to 817,997.09, 1,128,833.37 and 455,411.52

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Solution

The fourth proportional to 817,997.09, 1,128,833.37 and 455,411.52 is: 628,466.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,997.09 : 1,128,833.37 = 455,411.52 : x
  2. Step 2: Convert to fraction form
    817,997.09/1,128,833.37 = 455,411.52/x
  3. Step 3: Cross multiply
    817,997.09x = 1,128,833.37 × 455,411.52
  4. Step 4: Simplify right side
    817,997.09x = 514,083,720,858.42
  5. Step 5: Solve for x
    x = 514,083,720,858.42/817,997.09
  6. Step 6: Final answer
    x = 628,466.44

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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.