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Finding the Fourth Proportional to 516,355.11, 774,835.83 and 216,812.67

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Solution

The fourth proportional to 516,355.11, 774,835.83 and 216,812.67 is: 325,346.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,355.11 : 774,835.83 = 216,812.67 : x
  2. Step 2: Convert to fraction form
    516,355.11/774,835.83 = 216,812.67/x
  3. Step 3: Cross multiply
    516,355.11x = 774,835.83 × 216,812.67
  4. Step 4: Simplify right side
    516,355.11x = 167,994,225,113.97
  5. Step 5: Solve for x
    x = 167,994,225,113.97/516,355.11
  6. Step 6: Final answer
    x = 325,346.30

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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.