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Finding the Fourth Proportional to 405,712.44, 559,840.04 and 224,395.56

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Solution

The fourth proportional to 405,712.44, 559,840.04 and 224,395.56 is: 309,642.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,712.44 : 559,840.04 = 224,395.56 : x
  2. Step 2: Convert to fraction form
    405,712.44/559,840.04 = 224,395.56/x
  3. Step 3: Cross multiply
    405,712.44x = 559,840.04 × 224,395.56
  4. Step 4: Simplify right side
    405,712.44x = 125,625,619,286.22
  5. Step 5: Solve for x
    x = 125,625,619,286.22/405,712.44
  6. Step 6: Final answer
    x = 309,642.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.