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Finding the Fourth Proportional to 504,639.72, 696,437.22 and 292,671.72

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Solution

The fourth proportional to 504,639.72, 696,437.22 and 292,671.72 is: 403,906.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,639.72 : 696,437.22 = 292,671.72 : x
  2. Step 2: Convert to fraction form
    504,639.72/696,437.22 = 292,671.72/x
  3. Step 3: Cross multiply
    504,639.72x = 696,437.22 × 292,671.72
  4. Step 4: Simplify right side
    504,639.72x = 203,827,479,049.42
  5. Step 5: Solve for x
    x = 203,827,479,049.42/504,639.72
  6. Step 6: Final answer
    x = 403,906.93

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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.