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Finding the Fourth Proportional to 504,633.24, 696,362.06 and 289,621.96

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Solution

The fourth proportional to 504,633.24, 696,362.06 and 289,621.96 is: 399,660.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,633.24 : 696,362.06 = 289,621.96 : x
  2. Step 2: Convert to fraction form
    504,633.24/696,362.06 = 289,621.96/x
  3. Step 3: Cross multiply
    504,633.24x = 696,362.06 × 289,621.96
  4. Step 4: Simplify right side
    504,633.24x = 201,681,744,686.84
  5. Step 5: Solve for x
    x = 201,681,744,686.84/504,633.24
  6. Step 6: Final answer
    x = 399,660.05

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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.