Home / 405,185.28-559,152.64-223,909.44

Finding the Fourth Proportional to 405,185.28, 559,152.64 and 223,909.44

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Solution

The fourth proportional to 405,185.28, 559,152.64 and 223,909.44 is: 308,993.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,185.28 : 559,152.64 = 223,909.44 : x
  2. Step 2: Convert to fraction form
    405,185.28/559,152.64 = 223,909.44/x
  3. Step 3: Cross multiply
    405,185.28x = 559,152.64 × 223,909.44
  4. Step 4: Simplify right side
    405,185.28x = 125,199,554,496.92
  5. Step 5: Solve for x
    x = 125,199,554,496.92/405,185.28
  6. Step 6: Final answer
    x = 308,993.34

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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.