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Finding the Fourth Proportional to 541,831.63, 812,786.41 and 186,840.53

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Solution

The fourth proportional to 541,831.63, 812,786.41 and 186,840.53 is: 280,274.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,831.63 : 812,786.41 = 186,840.53 : x
  2. Step 2: Convert to fraction form
    541,831.63/812,786.41 = 186,840.53/x
  3. Step 3: Cross multiply
    541,831.63x = 812,786.41 × 186,840.53
  4. Step 4: Simplify right side
    541,831.63x = 151,861,443,621.20
  5. Step 5: Solve for x
    x = 151,861,443,621.20/541,831.63
  6. Step 6: Final answer
    x = 280,274.23

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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.