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Finding the Fourth Proportional to 405,700.42, 559,823.48 and 224,383.54

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Solution

The fourth proportional to 405,700.42, 559,823.48 and 224,383.54 is: 309,625.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,700.42 : 559,823.48 = 224,383.54 : x
  2. Step 2: Convert to fraction form
    405,700.42/559,823.48 = 224,383.54/x
  3. Step 3: Cross multiply
    405,700.42x = 559,823.48 × 224,383.54
  4. Step 4: Simplify right side
    405,700.42x = 125,615,174,217.52
  5. Step 5: Solve for x
    x = 125,615,174,217.52/405,700.42
  6. Step 6: Final answer
    x = 309,625.45

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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.