Home / 528,799.83-729,743.78-287,082.06

Finding the Fourth Proportional to 528,799.83, 729,743.78 and 287,082.06

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Solution

The fourth proportional to 528,799.83, 729,743.78 and 287,082.06 is: 396,173.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,799.83 : 729,743.78 = 287,082.06 : x
  2. Step 2: Convert to fraction form
    528,799.83/729,743.78 = 287,082.06/x
  3. Step 3: Cross multiply
    528,799.83x = 729,743.78 × 287,082.06
  4. Step 4: Simplify right side
    528,799.83x = 209,496,347,634.59
  5. Step 5: Solve for x
    x = 209,496,347,634.59/528,799.83
  6. Step 6: Final answer
    x = 396,173.25

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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.