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Finding the Fourth Proportional to 570,761.10, 856,198.29 and 211,026.18

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Solution

The fourth proportional to 570,761.10, 856,198.29 and 211,026.18 is: 316,560.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,761.10 : 856,198.29 = 211,026.18 : x
  2. Step 2: Convert to fraction form
    570,761.10/856,198.29 = 211,026.18/x
  3. Step 3: Cross multiply
    570,761.10x = 856,198.29 × 211,026.18
  4. Step 4: Simplify right side
    570,761.10x = 180,680,254,461.23
  5. Step 5: Solve for x
    x = 180,680,254,461.23/570,761.10
  6. Step 6: Final answer
    x = 316,560.21

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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.