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Finding the Fourth Proportional to 406,747.92, 561,122.28 and 255,928.08

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Solution

The fourth proportional to 406,747.92, 561,122.28 and 255,928.08 is: 353,061.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,747.92 : 561,122.28 = 255,928.08 : x
  2. Step 2: Convert to fraction form
    406,747.92/561,122.28 = 255,928.08/x
  3. Step 3: Cross multiply
    406,747.92x = 561,122.28 × 255,928.08
  4. Step 4: Simplify right side
    406,747.92x = 143,606,947,765.62
  5. Step 5: Solve for x
    x = 143,606,947,765.62/406,747.92
  6. Step 6: Final answer
    x = 353,061.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.