Home / 825,518.54-1,138,731.72-519,109.04

Finding the Fourth Proportional to 825,518.54, 1,138,731.72 and 519,109.04

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Solution

The fourth proportional to 825,518.54, 1,138,731.72 and 519,109.04 is: 716,066.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,518.54 : 1,138,731.72 = 519,109.04 : x
  2. Step 2: Convert to fraction form
    825,518.54/1,138,731.72 = 519,109.04/x
  3. Step 3: Cross multiply
    825,518.54x = 1,138,731.72 × 519,109.04
  4. Step 4: Simplify right side
    825,518.54x = 591,125,929,986.75
  5. Step 5: Solve for x
    x = 591,125,929,986.75/825,518.54
  6. Step 6: Final answer
    x = 716,066.21

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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.