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Finding the Fourth Proportional to 504,577.72, 696,418.14 and 289,865.08

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Solution

The fourth proportional to 504,577.72, 696,418.14 and 289,865.08 is: 400,071.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,577.72 : 696,418.14 = 289,865.08 : x
  2. Step 2: Convert to fraction form
    504,577.72/696,418.14 = 289,865.08/x
  3. Step 3: Cross multiply
    504,577.72x = 696,418.14 × 289,865.08
  4. Step 4: Simplify right side
    504,577.72x = 201,867,299,864.55
  5. Step 5: Solve for x
    x = 201,867,299,864.55/504,577.72
  6. Step 6: Final answer
    x = 400,071.77

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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.