Home / 821,893.50-1,134,133.45-515,872.06

Finding the Fourth Proportional to 821,893.50, 1,134,133.45 and 515,872.06

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Solution

The fourth proportional to 821,893.50, 1,134,133.45 and 515,872.06 is: 711,853.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,893.50 : 1,134,133.45 = 515,872.06 : x
  2. Step 2: Convert to fraction form
    821,893.50/1,134,133.45 = 515,872.06/x
  3. Step 3: Cross multiply
    821,893.50x = 1,134,133.45 × 515,872.06
  4. Step 4: Simplify right side
    821,893.50x = 585,067,755,041.39
  5. Step 5: Solve for x
    x = 585,067,755,041.39/821,893.50
  6. Step 6: Final answer
    x = 711,853.49

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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.