Home / 657,056.73-906,932.21-385,183.47

Finding the Fourth Proportional to 657,056.73, 906,932.21 and 385,183.47

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Solution

The fourth proportional to 657,056.73, 906,932.21 and 385,183.47 is: 531,666.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,056.73 : 906,932.21 = 385,183.47 : x
  2. Step 2: Convert to fraction form
    657,056.73/906,932.21 = 385,183.47/x
  3. Step 3: Cross multiply
    657,056.73x = 906,932.21 × 385,183.47
  4. Step 4: Simplify right side
    657,056.73x = 349,335,295,702.57
  5. Step 5: Solve for x
    x = 349,335,295,702.57/657,056.73
  6. Step 6: Final answer
    x = 531,666.87

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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.