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Finding the Fourth Proportional to 571,864.40, 857,537.40 and 216,760.40

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Solution

The fourth proportional to 571,864.40, 857,537.40 and 216,760.40 is: 325,042.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,864.40 : 857,537.40 = 216,760.40 : x
  2. Step 2: Convert to fraction form
    571,864.40/857,537.40 = 216,760.40/x
  3. Step 3: Cross multiply
    571,864.40x = 857,537.40 × 216,760.40
  4. Step 4: Simplify right side
    571,864.40x = 185,880,149,838.96
  5. Step 5: Solve for x
    x = 185,880,149,838.96/571,864.40
  6. Step 6: Final answer
    x = 325,042.35

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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.