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Finding the Fourth Proportional to 555,054.72, 766,305.54 and 364,402.32

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Solution

The fourth proportional to 555,054.72, 766,305.54 and 364,402.32 is: 503,091.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,054.72 : 766,305.54 = 364,402.32 : x
  2. Step 2: Convert to fraction form
    555,054.72/766,305.54 = 364,402.32/x
  3. Step 3: Cross multiply
    555,054.72x = 766,305.54 × 364,402.32
  4. Step 4: Simplify right side
    555,054.72x = 279,243,516,604.85
  5. Step 5: Solve for x
    x = 279,243,516,604.85/555,054.72
  6. Step 6: Final answer
    x = 503,091.87

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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.