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Finding the Fourth Proportional to 324,464.01, 486,017.11 and 260,940.76

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Solution

The fourth proportional to 324,464.01, 486,017.11 and 260,940.76 is: 390,865.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,464.01 : 486,017.11 = 260,940.76 : x
  2. Step 2: Convert to fraction form
    324,464.01/486,017.11 = 260,940.76/x
  3. Step 3: Cross multiply
    324,464.01x = 486,017.11 × 260,940.76
  4. Step 4: Simplify right side
    324,464.01x = 126,821,674,056.40
  5. Step 5: Solve for x
    x = 126,821,674,056.40/324,464.01
  6. Step 6: Final answer
    x = 390,865.15

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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.