Home / 685,781.93-1,028,740.57-236,443.66

Finding the Fourth Proportional to 685,781.93, 1,028,740.57 and 236,443.66

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Solution

The fourth proportional to 685,781.93, 1,028,740.57 and 236,443.66 is: 354,688.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,781.93 : 1,028,740.57 = 236,443.66 : x
  2. Step 2: Convert to fraction form
    685,781.93/1,028,740.57 = 236,443.66/x
  3. Step 3: Cross multiply
    685,781.93x = 1,028,740.57 × 236,443.66
  4. Step 4: Simplify right side
    685,781.93x = 243,239,182,398.33
  5. Step 5: Solve for x
    x = 243,239,182,398.33/685,781.93
  6. Step 6: Final answer
    x = 354,688.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.