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Finding the Fourth Proportional to 439,370.64, 658,603.44 and 173,023.20

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Solution

The fourth proportional to 439,370.64, 658,603.44 and 173,023.20 is: 259,356.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,370.64 : 658,603.44 = 173,023.20 : x
  2. Step 2: Convert to fraction form
    439,370.64/658,603.44 = 173,023.20/x
  3. Step 3: Cross multiply
    439,370.64x = 658,603.44 × 173,023.20
  4. Step 4: Simplify right side
    439,370.64x = 113,953,674,719.81
  5. Step 5: Solve for x
    x = 113,953,674,719.81/439,370.64
  6. Step 6: Final answer
    x = 259,356.60

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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.