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Finding the Fourth Proportional to 571,307.22, 857,072.93 and 211,481.22

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Solution

The fourth proportional to 571,307.22, 857,072.93 and 211,481.22 is: 317,263.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,307.22 : 857,072.93 = 211,481.22 : x
  2. Step 2: Convert to fraction form
    571,307.22/857,072.93 = 211,481.22/x
  3. Step 3: Cross multiply
    571,307.22x = 857,072.93 × 211,481.22
  4. Step 4: Simplify right side
    571,307.22x = 181,254,827,807.97
  5. Step 5: Solve for x
    x = 181,254,827,807.97/571,307.22
  6. Step 6: Final answer
    x = 317,263.32

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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.