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Finding the Fourth Proportional to 571,585.32, 856,690.28 and 211,469.04

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Solution

The fourth proportional to 571,585.32, 856,690.28 and 211,469.04 is: 316,949.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,585.32 : 856,690.28 = 211,469.04 : x
  2. Step 2: Convert to fraction form
    571,585.32/856,690.28 = 211,469.04/x
  3. Step 3: Cross multiply
    571,585.32x = 856,690.28 × 211,469.04
  4. Step 4: Simplify right side
    571,585.32x = 181,163,471,088.93
  5. Step 5: Solve for x
    x = 181,163,471,088.93/571,585.32
  6. Step 6: Final answer
    x = 316,949.13

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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.