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Finding the Fourth Proportional to 293,060.40, 438,424.20 and 254,050.80

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Solution

The fourth proportional to 293,060.40, 438,424.20 and 254,050.80 is: 380,065.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,060.40 : 438,424.20 = 254,050.80 : x
  2. Step 2: Convert to fraction form
    293,060.40/438,424.20 = 254,050.80/x
  3. Step 3: Cross multiply
    293,060.40x = 438,424.20 × 254,050.80
  4. Step 4: Simplify right side
    293,060.40x = 111,382,018,749.36
  5. Step 5: Solve for x
    x = 111,382,018,749.36/293,060.40
  6. Step 6: Final answer
    x = 380,065.06

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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.