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Finding the Fourth Proportional to 406,813.12, 561,400.56 and 227,965.12

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Solution

The fourth proportional to 406,813.12, 561,400.56 and 227,965.12 is: 314,591.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,813.12 : 561,400.56 = 227,965.12 : x
  2. Step 2: Convert to fraction form
    406,813.12/561,400.56 = 227,965.12/x
  3. Step 3: Cross multiply
    406,813.12x = 561,400.56 × 227,965.12
  4. Step 4: Simplify right side
    406,813.12x = 127,979,746,028.47
  5. Step 5: Solve for x
    x = 127,979,746,028.47/406,813.12
  6. Step 6: Final answer
    x = 314,591.00

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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.