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Finding the Fourth Proportional to 404,840.80, 606,775.20 and 168,061.60

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Solution

The fourth proportional to 404,840.80, 606,775.20 and 168,061.60 is: 251,890.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,840.80 : 606,775.20 = 168,061.60 : x
  2. Step 2: Convert to fraction form
    404,840.80/606,775.20 = 168,061.60/x
  3. Step 3: Cross multiply
    404,840.80x = 606,775.20 × 168,061.60
  4. Step 4: Simplify right side
    404,840.80x = 101,975,610,952.32
  5. Step 5: Solve for x
    x = 101,975,610,952.32/404,840.80
  6. Step 6: Final answer
    x = 251,890.65

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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.