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Finding the Fourth Proportional to 577,220.40, 864,846.45 and 476,837.10

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Solution

The fourth proportional to 577,220.40, 864,846.45 and 476,837.10 is: 714,442.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,220.40 : 864,846.45 = 476,837.10 : x
  2. Step 2: Convert to fraction form
    577,220.40/864,846.45 = 476,837.10/x
  3. Step 3: Cross multiply
    577,220.40x = 864,846.45 × 476,837.10
  4. Step 4: Simplify right side
    577,220.40x = 412,390,873,163.30
  5. Step 5: Solve for x
    x = 412,390,873,163.30/577,220.40
  6. Step 6: Final answer
    x = 714,442.65

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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.