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Finding the Fourth Proportional to 330,831.70, 496,247.55 and 301,801.30

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Solution

The fourth proportional to 330,831.70, 496,247.55 and 301,801.30 is: 452,701.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,831.70 : 496,247.55 = 301,801.30 : x
  2. Step 2: Convert to fraction form
    330,831.70/496,247.55 = 301,801.30/x
  3. Step 3: Cross multiply
    330,831.70x = 496,247.55 × 301,801.30
  4. Step 4: Simplify right side
    330,831.70x = 149,768,155,711.82
  5. Step 5: Solve for x
    x = 149,768,155,711.82/330,831.70
  6. Step 6: Final answer
    x = 452,701.95

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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.