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Finding the Fourth Proportional to 414,233.65, 621,344.17 and 186,368.32

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Solution

The fourth proportional to 414,233.65, 621,344.17 and 186,368.32 is: 279,549.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,233.65 : 621,344.17 = 186,368.32 : x
  2. Step 2: Convert to fraction form
    414,233.65/621,344.17 = 186,368.32/x
  3. Step 3: Cross multiply
    414,233.65x = 621,344.17 × 186,368.32
  4. Step 4: Simplify right side
    414,233.65x = 115,798,869,104.69
  5. Step 5: Solve for x
    x = 115,798,869,104.69/414,233.65
  6. Step 6: Final answer
    x = 279,549.64

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1.5x scale

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.