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Finding the Fourth Proportional to 576,574.12, 864,864.26 and 378,151.03

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Solution

The fourth proportional to 576,574.12, 864,864.26 and 378,151.03 is: 567,228.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,574.12 : 864,864.26 = 378,151.03 : x
  2. Step 2: Convert to fraction form
    576,574.12/864,864.26 = 378,151.03/x
  3. Step 3: Cross multiply
    576,574.12x = 864,864.26 × 378,151.03
  4. Step 4: Simplify right side
    576,574.12x = 327,049,308,094.34
  5. Step 5: Solve for x
    x = 327,049,308,094.34/576,574.12
  6. Step 6: Final answer
    x = 567,228.56

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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.