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Finding the Fourth Proportional to 484,647.89, 666,004.84 and 462,420.47

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Solution

The fourth proportional to 484,647.89, 666,004.84 and 462,420.47 is: 635,459.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,647.89 : 666,004.84 = 462,420.47 : x
  2. Step 2: Convert to fraction form
    484,647.89/666,004.84 = 462,420.47/x
  3. Step 3: Cross multiply
    484,647.89x = 666,004.84 × 462,420.47
  4. Step 4: Simplify right side
    484,647.89x = 307,974,271,644.04
  5. Step 5: Solve for x
    x = 307,974,271,644.04/484,647.89
  6. Step 6: Final answer
    x = 635,459.85

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.