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Finding the Fourth Proportional to 293,046.40, 438,403.20 and 254,036.80

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Solution

The fourth proportional to 293,046.40, 438,403.20 and 254,036.80 is: 380,044.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,046.40 : 438,403.20 = 254,036.80 : x
  2. Step 2: Convert to fraction form
    293,046.40/438,403.20 = 254,036.80/x
  3. Step 3: Cross multiply
    293,046.40x = 438,403.20 × 254,036.80
  4. Step 4: Simplify right side
    293,046.40x = 111,370,546,037.76
  5. Step 5: Solve for x
    x = 111,370,546,037.76/293,046.40
  6. Step 6: Final answer
    x = 380,044.07

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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.