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Finding the Fourth Proportional to 407,590.92, 611,189.69 and 170,870.04

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Solution

The fourth proportional to 407,590.92, 611,189.69 and 170,870.04 is: 256,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,590.92 : 611,189.69 = 170,870.04 : x
  2. Step 2: Convert to fraction form
    407,590.92/611,189.69 = 170,870.04/x
  3. Step 3: Cross multiply
    407,590.92x = 611,189.69 × 170,870.04
  4. Step 4: Simplify right side
    407,590.92x = 104,434,005,923.54
  5. Step 5: Solve for x
    x = 104,434,005,923.54/407,590.92
  6. Step 6: Final answer
    x = 256,222.60

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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.