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Finding the Fourth Proportional to 405,088.90, 607,304.39 and 168,608.59

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Solution

The fourth proportional to 405,088.90, 607,304.39 and 168,608.59 is: 252,775.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,088.90 : 607,304.39 = 168,608.59 : x
  2. Step 2: Convert to fraction form
    405,088.90/607,304.39 = 168,608.59/x
  3. Step 3: Cross multiply
    405,088.90x = 607,304.39 × 168,608.59
  4. Step 4: Simplify right side
    405,088.90x = 102,396,734,537.41
  5. Step 5: Solve for x
    x = 102,396,734,537.41/405,088.90
  6. Step 6: Final answer
    x = 252,775.96

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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.