Home / 407,479.14-611,621.01-305,923.98

Finding the Fourth Proportional to 407,479.14, 611,621.01 and 305,923.98

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Solution

The fourth proportional to 407,479.14, 611,621.01 and 305,923.98 is: 459,188.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,479.14 : 611,621.01 = 305,923.98 : x
  2. Step 2: Convert to fraction form
    407,479.14/611,621.01 = 305,923.98/x
  3. Step 3: Cross multiply
    407,479.14x = 611,621.01 × 305,923.98
  4. Step 4: Simplify right side
    407,479.14x = 187,109,533,630.82
  5. Step 5: Solve for x
    x = 187,109,533,630.82/407,479.14
  6. Step 6: Final answer
    x = 459,188.01

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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.