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Finding the Fourth Proportional to 527,077.97, 790,764.58 and 211,756.31

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Solution

The fourth proportional to 527,077.97, 790,764.58 and 211,756.31 is: 317,693.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,077.97 : 790,764.58 = 211,756.31 : x
  2. Step 2: Convert to fraction form
    527,077.97/790,764.58 = 211,756.31/x
  3. Step 3: Cross multiply
    527,077.97x = 790,764.58 × 211,756.31
  4. Step 4: Simplify right side
    527,077.97x = 167,449,389,539.50
  5. Step 5: Solve for x
    x = 167,449,389,539.50/527,077.97
  6. Step 6: Final answer
    x = 317,693.77

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1.5x scale

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.