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Finding the Fourth Proportional to 571,667.76, 857,467.08 and 256,039.92

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Solution

The fourth proportional to 571,667.76, 857,467.08 and 256,039.92 is: 384,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,667.76 : 857,467.08 = 256,039.92 : x
  2. Step 2: Convert to fraction form
    571,667.76/857,467.08 = 256,039.92/x
  3. Step 3: Cross multiply
    571,667.76x = 857,467.08 × 256,039.92
  4. Step 4: Simplify right side
    571,667.76x = 219,545,802,565.83
  5. Step 5: Solve for x
    x = 219,545,802,565.83/571,667.76
  6. Step 6: Final answer
    x = 384,044.40

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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.