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Finding the Fourth Proportional to 318,045.92, 477,027.84 and 265,068.86

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Solution

The fourth proportional to 318,045.92, 477,027.84 and 265,068.86 is: 397,569.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,045.92 : 477,027.84 = 265,068.86 : x
  2. Step 2: Convert to fraction form
    318,045.92/477,027.84 = 265,068.86/x
  3. Step 3: Cross multiply
    318,045.92x = 477,027.84 × 265,068.86
  4. Step 4: Simplify right side
    318,045.92x = 126,445,225,737.06
  5. Step 5: Solve for x
    x = 126,445,225,737.06/318,045.92
  6. Step 6: Final answer
    x = 397,569.09

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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.