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Finding the Fourth Proportional to 527,281.60, 790,959.29 and 211,738.50

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Solution

The fourth proportional to 527,281.60, 790,959.29 and 211,738.50 is: 317,622.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,281.60 : 790,959.29 = 211,738.50 : x
  2. Step 2: Convert to fraction form
    527,281.60/790,959.29 = 211,738.50/x
  3. Step 3: Cross multiply
    527,281.60x = 790,959.29 × 211,738.50
  4. Step 4: Simplify right side
    527,281.60x = 167,476,533,625.67
  5. Step 5: Solve for x
    x = 167,476,533,625.67/527,281.60
  6. Step 6: Final answer
    x = 317,622.56

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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.