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Finding the Fourth Proportional to 464,231.18, 640,624.28 and 260,293.76

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Solution

The fourth proportional to 464,231.18, 640,624.28 and 260,293.76 is: 359,197.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,231.18 : 640,624.28 = 260,293.76 : x
  2. Step 2: Convert to fraction form
    464,231.18/640,624.28 = 260,293.76/x
  3. Step 3: Cross multiply
    464,231.18x = 640,624.28 × 260,293.76
  4. Step 4: Simplify right side
    464,231.18x = 166,750,498,083.90
  5. Step 5: Solve for x
    x = 166,750,498,083.90/464,231.18
  6. Step 6: Final answer
    x = 359,197.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.