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Finding the Fourth Proportional to 293,071.40, 440,579.10 and 254,580.20

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Solution

The fourth proportional to 293,071.40, 440,579.10 and 254,580.20 is: 382,714.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,071.40 : 440,579.10 = 254,580.20 : x
  2. Step 2: Convert to fraction form
    293,071.40/440,579.10 = 254,580.20/x
  3. Step 3: Cross multiply
    293,071.40x = 440,579.10 × 254,580.20
  4. Step 4: Simplify right side
    293,071.40x = 112,162,715,393.82
  5. Step 5: Solve for x
    x = 112,162,715,393.82/293,071.40
  6. Step 6: Final answer
    x = 382,714.64

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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.