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Finding the Fourth Proportional to 406,854.84, 561,477.46 and 225,555.24

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Solution

The fourth proportional to 406,854.84, 561,477.46 and 225,555.24 is: 311,276.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,854.84 : 561,477.46 = 225,555.24 : x
  2. Step 2: Convert to fraction form
    406,854.84/561,477.46 = 225,555.24/x
  3. Step 3: Cross multiply
    406,854.84x = 561,477.46 × 225,555.24
  4. Step 4: Simplify right side
    406,854.84x = 126,644,183,244.89
  5. Step 5: Solve for x
    x = 126,644,183,244.89/406,854.84
  6. Step 6: Final answer
    x = 311,276.09

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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.