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Finding the Fourth Proportional to 501,346.45, 752,687.12 and 291,135.25

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Solution

The fourth proportional to 501,346.45, 752,687.12 and 291,135.25 is: 437,090.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,346.45 : 752,687.12 = 291,135.25 : x
  2. Step 2: Convert to fraction form
    501,346.45/752,687.12 = 291,135.25/x
  3. Step 3: Cross multiply
    501,346.45x = 752,687.12 × 291,135.25
  4. Step 4: Simplify right side
    501,346.45x = 219,133,752,852.98
  5. Step 5: Solve for x
    x = 219,133,752,852.98/501,346.45
  6. Step 6: Final answer
    x = 437,090.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.