Home / 529,112.06-730,180.16-287,399.35

Finding the Fourth Proportional to 529,112.06, 730,180.16 and 287,399.35

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Solution

The fourth proportional to 529,112.06, 730,180.16 and 287,399.35 is: 396,614.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,112.06 : 730,180.16 = 287,399.35 : x
  2. Step 2: Convert to fraction form
    529,112.06/730,180.16 = 287,399.35/x
  3. Step 3: Cross multiply
    529,112.06x = 730,180.16 × 287,399.35
  4. Step 4: Simplify right side
    529,112.06x = 209,853,303,366.90
  5. Step 5: Solve for x
    x = 209,853,303,366.90/529,112.06
  6. Step 6: Final answer
    x = 396,614.10

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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.