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Finding the Fourth Proportional to 401,588.96, 554,236.40 and 256,528.24

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Solution

The fourth proportional to 401,588.96, 554,236.40 and 256,528.24 is: 354,036.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,588.96 : 554,236.40 = 256,528.24 : x
  2. Step 2: Convert to fraction form
    401,588.96/554,236.40 = 256,528.24/x
  3. Step 3: Cross multiply
    401,588.96x = 554,236.40 × 256,528.24
  4. Step 4: Simplify right side
    401,588.96x = 142,177,288,235.94
  5. Step 5: Solve for x
    x = 142,177,288,235.94/401,588.96
  6. Step 6: Final answer
    x = 354,036.84

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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.