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Finding the Fourth Proportional to 404,831.20, 607,635.60 and 345,733.60

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Solution

The fourth proportional to 404,831.20, 607,635.60 and 345,733.60 is: 518,932.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,831.20 : 607,635.60 = 345,733.60 : x
  2. Step 2: Convert to fraction form
    404,831.20/607,635.60 = 345,733.60/x
  3. Step 3: Cross multiply
    404,831.20x = 607,635.60 × 345,733.60
  4. Step 4: Simplify right side
    404,831.20x = 210,080,043,476.16
  5. Step 5: Solve for x
    x = 210,080,043,476.16/404,831.20
  6. Step 6: Final answer
    x = 518,932.44

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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.