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Finding the Fourth Proportional to 516,217.88, 774,437.64 and 216,525.74

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Solution

The fourth proportional to 516,217.88, 774,437.64 and 216,525.74 is: 324,835.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,217.88 : 774,437.64 = 216,525.74 : x
  2. Step 2: Convert to fraction form
    516,217.88/774,437.64 = 216,525.74/x
  3. Step 3: Cross multiply
    516,217.88x = 774,437.64 × 216,525.74
  4. Step 4: Simplify right side
    516,217.88x = 167,685,679,212.67
  5. Step 5: Solve for x
    x = 167,685,679,212.67/516,217.88
  6. Step 6: Final answer
    x = 324,835.08

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Similar ratio
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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.