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Finding the Fourth Proportional to 516,329.65, 774,797.87 and 216,787.19

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Solution

The fourth proportional to 516,329.65, 774,797.87 and 216,787.19 is: 325,308.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,329.65 : 774,797.87 = 216,787.19 : x
  2. Step 2: Convert to fraction form
    516,329.65/774,797.87 = 216,787.19/x
  3. Step 3: Cross multiply
    516,329.65x = 774,797.87 × 216,787.19
  4. Step 4: Simplify right side
    516,329.65x = 167,966,251,971.35
  5. Step 5: Solve for x
    x = 167,966,251,971.35/516,329.65
  6. Step 6: Final answer
    x = 325,308.17

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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.