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Finding the Fourth Proportional to 571,569.63, 857,354.66 and 211,864.16

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Solution

The fourth proportional to 571,569.63, 857,354.66 and 211,864.16 is: 317,796.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,569.63 : 857,354.66 = 211,864.16 : x
  2. Step 2: Convert to fraction form
    571,569.63/857,354.66 = 211,864.16/x
  3. Step 3: Cross multiply
    571,569.63x = 857,354.66 × 211,864.16
  4. Step 4: Simplify right side
    571,569.63x = 181,642,719,516.89
  5. Step 5: Solve for x
    x = 181,642,719,516.89/571,569.63
  6. Step 6: Final answer
    x = 317,796.31

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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.