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Finding the Fourth Proportional to 529,486.24, 730,690.80 and 291,022.24

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Solution

The fourth proportional to 529,486.24, 730,690.80 and 291,022.24 is: 401,610.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,486.24 : 730,690.80 = 291,022.24 : x
  2. Step 2: Convert to fraction form
    529,486.24/730,690.80 = 291,022.24/x
  3. Step 3: Cross multiply
    529,486.24x = 730,690.80 × 291,022.24
  4. Step 4: Simplify right side
    529,486.24x = 212,647,273,363.39
  5. Step 5: Solve for x
    x = 212,647,273,363.39/529,486.24
  6. Step 6: Final answer
    x = 401,610.58

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1.5x scale

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.