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Finding the Fourth Proportional to 636,975.76, 955,611.28 and 216,251.64

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Solution

The fourth proportional to 636,975.76, 955,611.28 and 216,251.64 is: 324,427.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,975.76 : 955,611.28 = 216,251.64 : x
  2. Step 2: Convert to fraction form
    636,975.76/955,611.28 = 216,251.64/x
  3. Step 3: Cross multiply
    636,975.76x = 955,611.28 × 216,251.64
  4. Step 4: Simplify right side
    636,975.76x = 206,652,506,502.50
  5. Step 5: Solve for x
    x = 206,652,506,502.50/636,975.76
  6. Step 6: Final answer
    x = 324,427.58

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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.