Home / 529,103.19-730,167.75-287,390.48

Finding the Fourth Proportional to 529,103.19, 730,167.75 and 287,390.48

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Solution

The fourth proportional to 529,103.19, 730,167.75 and 287,390.48 is: 396,601.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,103.19 : 730,167.75 = 287,390.48 : x
  2. Step 2: Convert to fraction form
    529,103.19/730,167.75 = 287,390.48/x
  3. Step 3: Cross multiply
    529,103.19x = 730,167.75 × 287,390.48
  4. Step 4: Simplify right side
    529,103.19x = 209,843,256,502.18
  5. Step 5: Solve for x
    x = 209,843,256,502.18/529,103.19
  6. Step 6: Final answer
    x = 396,601.76

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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.