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Finding the Fourth Proportional to 516,329.15, 774,797.12 and 216,786.69

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Solution

The fourth proportional to 516,329.15, 774,797.12 and 216,786.69 is: 325,307.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,329.15 : 774,797.12 = 216,786.69 : x
  2. Step 2: Convert to fraction form
    516,329.15/774,797.12 = 216,786.69/x
  3. Step 3: Cross multiply
    516,329.15x = 774,797.12 × 216,786.69
  4. Step 4: Simplify right side
    516,329.15x = 167,965,701,982.40
  5. Step 5: Solve for x
    x = 167,965,701,982.40/516,329.15
  6. Step 6: Final answer
    x = 325,307.42

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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.