Home / 885,670.36-1,222,189.82-523,210.61

Finding the Fourth Proportional to 885,670.36, 1,222,189.82 and 523,210.61

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Solution

The fourth proportional to 885,670.36, 1,222,189.82 and 523,210.61 is: 722,009.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,670.36 : 1,222,189.82 = 523,210.61 : x
  2. Step 2: Convert to fraction form
    885,670.36/1,222,189.82 = 523,210.61/x
  3. Step 3: Cross multiply
    885,670.36x = 1,222,189.82 × 523,210.61
  4. Step 4: Simplify right side
    885,670.36x = 639,462,681,257.99
  5. Step 5: Solve for x
    x = 639,462,681,257.99/885,670.36
  6. Step 6: Final answer
    x = 722,009.81

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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.