Home / 716,091.83-988,187.02-393,801.93

Finding the Fourth Proportional to 716,091.83, 988,187.02 and 393,801.93

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Solution

The fourth proportional to 716,091.83, 988,187.02 and 393,801.93 is: 543,435.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,091.83 : 988,187.02 = 393,801.93 : x
  2. Step 2: Convert to fraction form
    716,091.83/988,187.02 = 393,801.93/x
  3. Step 3: Cross multiply
    716,091.83x = 988,187.02 × 393,801.93
  4. Step 4: Simplify right side
    716,091.83x = 389,149,954,933.97
  5. Step 5: Solve for x
    x = 389,149,954,933.97/716,091.83
  6. Step 6: Final answer
    x = 543,435.82

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Double scale
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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.