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Finding the Fourth Proportional to 324,831.20, 487,246.80 and 246,099.20

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Solution

The fourth proportional to 324,831.20, 487,246.80 and 246,099.20 is: 369,148.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,831.20 : 487,246.80 = 246,099.20 : x
  2. Step 2: Convert to fraction form
    324,831.20/487,246.80 = 246,099.20/x
  3. Step 3: Cross multiply
    324,831.20x = 487,246.80 × 246,099.20
  4. Step 4: Simplify right side
    324,831.20x = 119,911,047,682.56
  5. Step 5: Solve for x
    x = 119,911,047,682.56/324,831.20
  6. Step 6: Final answer
    x = 369,148.80

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1.5x scale

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.