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Finding the Fourth Proportional to 576,422.70, 864,634.05 and 541,430.70

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Solution

The fourth proportional to 576,422.70, 864,634.05 and 541,430.70 is: 812,146.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,422.70 : 864,634.05 = 541,430.70 : x
  2. Step 2: Convert to fraction form
    576,422.70/864,634.05 = 541,430.70/x
  3. Step 3: Cross multiply
    576,422.70x = 864,634.05 × 541,430.70
  4. Step 4: Simplify right side
    576,422.70x = 468,139,418,935.34
  5. Step 5: Solve for x
    x = 468,139,418,935.34/576,422.70
  6. Step 6: Final answer
    x = 812,146.05

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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.