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Finding the Fourth Proportional to 350,505.72, 483,669.90 and 207,271.80

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Solution

The fourth proportional to 350,505.72, 483,669.90 and 207,271.80 is: 286,018.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,505.72 : 483,669.90 = 207,271.80 : x
  2. Step 2: Convert to fraction form
    350,505.72/483,669.90 = 207,271.80/x
  3. Step 3: Cross multiply
    350,505.72x = 483,669.90 × 207,271.80
  4. Step 4: Simplify right side
    350,505.72x = 100,251,130,778.82
  5. Step 5: Solve for x
    x = 100,251,130,778.82/350,505.72
  6. Step 6: Final answer
    x = 286,018.53

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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.