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Finding the Fourth Proportional to 571,387.00, 856,476.21 and 211,326.46

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Solution

The fourth proportional to 571,387.00, 856,476.21 and 211,326.46 is: 316,766.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,387.00 : 856,476.21 = 211,326.46 : x
  2. Step 2: Convert to fraction form
    571,387.00/856,476.21 = 211,326.46/x
  3. Step 3: Cross multiply
    571,387.00x = 856,476.21 × 211,326.46
  4. Step 4: Simplify right side
    571,387.00x = 180,996,084,184.80
  5. Step 5: Solve for x
    x = 180,996,084,184.80/571,387.00
  6. Step 6: Final answer
    x = 316,766.19

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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.