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Finding the Fourth Proportional to 326,216.40, 488,741.40 and 276,061.20

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Solution

The fourth proportional to 326,216.40, 488,741.40 and 276,061.20 is: 413,598.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,216.40 : 488,741.40 = 276,061.20 : x
  2. Step 2: Convert to fraction form
    326,216.40/488,741.40 = 276,061.20/x
  3. Step 3: Cross multiply
    326,216.40x = 488,741.40 × 276,061.20
  4. Step 4: Simplify right side
    326,216.40x = 134,922,537,373.68
  5. Step 5: Solve for x
    x = 134,922,537,373.68/326,216.40
  6. Step 6: Final answer
    x = 413,598.27

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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.