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Finding the Fourth Proportional to 571,084.79, 856,024.35 and 191,645.75

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Solution

The fourth proportional to 571,084.79, 856,024.35 and 191,645.75 is: 287,266.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,084.79 : 856,024.35 = 191,645.75 : x
  2. Step 2: Convert to fraction form
    571,084.79/856,024.35 = 191,645.75/x
  3. Step 3: Cross multiply
    571,084.79x = 856,024.35 × 191,645.75
  4. Step 4: Simplify right side
    571,084.79x = 164,053,424,293.89
  5. Step 5: Solve for x
    x = 164,053,424,293.89/571,084.79
  6. Step 6: Final answer
    x = 287,266.32

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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.