Home / 529,116.12-730,189.08-287,399.16

Finding the Fourth Proportional to 529,116.12, 730,189.08 and 287,399.16

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Solution

The fourth proportional to 529,116.12, 730,189.08 and 287,399.16 is: 396,615.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,116.12 : 730,189.08 = 287,399.16 : x
  2. Step 2: Convert to fraction form
    529,116.12/730,189.08 = 287,399.16/x
  3. Step 3: Cross multiply
    529,116.12x = 730,189.08 × 287,399.16
  4. Step 4: Simplify right side
    529,116.12x = 209,855,728,233.17
  5. Step 5: Solve for x
    x = 209,855,728,233.17/529,116.12
  6. Step 6: Final answer
    x = 396,615.64

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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.