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Finding the Fourth Proportional to 576,021.60, 864,032.40 and 225,813.60

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Solution

The fourth proportional to 576,021.60, 864,032.40 and 225,813.60 is: 338,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,021.60 : 864,032.40 = 225,813.60 : x
  2. Step 2: Convert to fraction form
    576,021.60/864,032.40 = 225,813.60/x
  3. Step 3: Cross multiply
    576,021.60x = 864,032.40 × 225,813.60
  4. Step 4: Simplify right side
    576,021.60x = 195,110,266,760.64
  5. Step 5: Solve for x
    x = 195,110,266,760.64/576,021.60
  6. Step 6: Final answer
    x = 338,720.40

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Similar ratio
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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.