Home / 821,781.61-1,134,036.85-459,208.44

Finding the Fourth Proportional to 821,781.61, 1,134,036.85 and 459,208.44

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Solution

The fourth proportional to 821,781.61, 1,134,036.85 and 459,208.44 is: 633,695.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,781.61 : 1,134,036.85 = 459,208.44 : x
  2. Step 2: Convert to fraction form
    821,781.61/1,134,036.85 = 459,208.44/x
  3. Step 3: Cross multiply
    821,781.61x = 1,134,036.85 × 459,208.44
  4. Step 4: Simplify right side
    821,781.61x = 520,759,292,791.01
  5. Step 5: Solve for x
    x = 520,759,292,791.01/821,781.61
  6. Step 6: Final answer
    x = 633,695.48

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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.