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Finding the Fourth Proportional to 408,479.39, 611,669.32 and 250,228.07

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Solution

The fourth proportional to 408,479.39, 611,669.32 and 250,228.07 is: 374,699.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,479.39 : 611,669.32 = 250,228.07 : x
  2. Step 2: Convert to fraction form
    408,479.39/611,669.32 = 250,228.07/x
  3. Step 3: Cross multiply
    408,479.39x = 611,669.32 × 250,228.07
  4. Step 4: Simplify right side
    408,479.39x = 153,056,833,421.81
  5. Step 5: Solve for x
    x = 153,056,833,421.81/408,479.39
  6. Step 6: Final answer
    x = 374,699.04

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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.