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Finding the Fourth Proportional to 529,526, 730,745.88 and 291,062

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Solution

The fourth proportional to 529,526, 730,745.88 and 291,062 is: 401,665.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,526 : 730,745.88 = 291,062 : x
  2. Step 2: Convert to fraction form
    529,526/730,745.88 = 291,062/x
  3. Step 3: Cross multiply
    529,526x = 730,745.88 × 291,062
  4. Step 4: Simplify right side
    529,526x = 212,692,357,324.56
  5. Step 5: Solve for x
    x = 212,692,357,324.56/529,526
  6. Step 6: Final answer
    x = 401,665.56

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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.