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Finding the Fourth Proportional to 350,393.12, 483,543 and 199,490

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Solution

The fourth proportional to 350,393.12, 483,543 and 199,490 is: 275,296.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,393.12 : 483,543 = 199,490 : x
  2. Step 2: Convert to fraction form
    350,393.12/483,543 = 199,490/x
  3. Step 3: Cross multiply
    350,393.12x = 483,543 × 199,490
  4. Step 4: Simplify right side
    350,393.12x = 96,461,993,070
  5. Step 5: Solve for x
    x = 96,461,993,070/350,393.12
  6. Step 6: Final answer
    x = 275,296.48

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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.