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Finding the Fourth Proportional to 483,035.04, 666,125.10 and 310,777.20

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Solution

The fourth proportional to 483,035.04, 666,125.10 and 310,777.20 is: 428,574.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,035.04 : 666,125.10 = 310,777.20 : x
  2. Step 2: Convert to fraction form
    483,035.04/666,125.10 = 310,777.20/x
  3. Step 3: Cross multiply
    483,035.04x = 666,125.10 × 310,777.20
  4. Step 4: Simplify right side
    483,035.04x = 207,016,493,427.72
  5. Step 5: Solve for x
    x = 207,016,493,427.72/483,035.04
  6. Step 6: Final answer
    x = 428,574.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.