Home / 405,105.24-559,035.90-223,807.80

Finding the Fourth Proportional to 405,105.24, 559,035.90 and 223,807.80

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Solution

The fourth proportional to 405,105.24, 559,035.90 and 223,807.80 is: 308,849.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,105.24 : 559,035.90 = 223,807.80 : x
  2. Step 2: Convert to fraction form
    405,105.24/559,035.90 = 223,807.80/x
  3. Step 3: Cross multiply
    405,105.24x = 559,035.90 × 223,807.80
  4. Step 4: Simplify right side
    405,105.24x = 125,116,594,900.02
  5. Step 5: Solve for x
    x = 125,116,594,900.02/405,105.24
  6. Step 6: Final answer
    x = 308,849.61

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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.