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Finding the Fourth Proportional to 404,443.20, 607,831.20 and 353,121.60

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Solution

The fourth proportional to 404,443.20, 607,831.20 and 353,121.60 is: 530,700.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,443.20 : 607,831.20 = 353,121.60 : x
  2. Step 2: Convert to fraction form
    404,443.20/607,831.20 = 353,121.60/x
  3. Step 3: Cross multiply
    404,443.20x = 607,831.20 × 353,121.60
  4. Step 4: Simplify right side
    404,443.20x = 214,638,325,873.92
  5. Step 5: Solve for x
    x = 214,638,325,873.92/404,443.20
  6. Step 6: Final answer
    x = 530,700.79

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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.