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Finding the Fourth Proportional to 501,670.80, 752,621.16 and 217,409.07

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Solution

The fourth proportional to 501,670.80, 752,621.16 and 217,409.07 is: 326,163.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,670.80 : 752,621.16 = 217,409.07 : x
  2. Step 2: Convert to fraction form
    501,670.80/752,621.16 = 217,409.07/x
  3. Step 3: Cross multiply
    501,670.80x = 752,621.16 × 217,409.07
  4. Step 4: Simplify right side
    501,670.80x = 163,626,666,457.92
  5. Step 5: Solve for x
    x = 163,626,666,457.92/501,670.80
  6. Step 6: Final answer
    x = 326,163.43

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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.