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Finding the Fourth Proportional to 406,935.06, 610,479.12 and 163,794.72

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Solution

The fourth proportional to 406,935.06, 610,479.12 and 163,794.72 is: 245,722.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,935.06 : 610,479.12 = 163,794.72 : x
  2. Step 2: Convert to fraction form
    406,935.06/610,479.12 = 163,794.72/x
  3. Step 3: Cross multiply
    406,935.06x = 610,479.12 × 163,794.72
  4. Step 4: Simplify right side
    406,935.06x = 99,993,256,526.25
  5. Step 5: Solve for x
    x = 99,993,256,526.25/406,935.06
  6. Step 6: Final answer
    x = 245,722.88

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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.