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Finding the Fourth Proportional to 324,607.70, 486,911.55 and 245,875.70

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Solution

The fourth proportional to 324,607.70, 486,911.55 and 245,875.70 is: 368,813.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,607.70 : 486,911.55 = 245,875.70 : x
  2. Step 2: Convert to fraction form
    324,607.70/486,911.55 = 245,875.70/x
  3. Step 3: Cross multiply
    324,607.70x = 486,911.55 × 245,875.70
  4. Step 4: Simplify right side
    324,607.70x = 119,719,718,194.34
  5. Step 5: Solve for x
    x = 119,719,718,194.34/324,607.70
  6. Step 6: Final answer
    x = 368,813.55

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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.