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Finding the Fourth Proportional to 570,846.98, 856,326.90 and 211,112.22

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Solution

The fourth proportional to 570,846.98, 856,326.90 and 211,112.22 is: 316,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,846.98 : 856,326.90 = 211,112.22 : x
  2. Step 2: Convert to fraction form
    570,846.98/856,326.90 = 211,112.22/x
  3. Step 3: Cross multiply
    570,846.98x = 856,326.90 × 211,112.22
  4. Step 4: Simplify right side
    570,846.98x = 180,781,072,904.72
  5. Step 5: Solve for x
    x = 180,781,072,904.72/570,846.98
  6. Step 6: Final answer
    x = 316,689.20

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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.