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Finding the Fourth Proportional to 571,358.46, 788,457.60 and 313,226.58

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Solution

The fourth proportional to 571,358.46, 788,457.60 and 313,226.58 is: 432,243.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,358.46 : 788,457.60 = 313,226.58 : x
  2. Step 2: Convert to fraction form
    571,358.46/788,457.60 = 313,226.58/x
  3. Step 3: Cross multiply
    571,358.46x = 788,457.60 × 313,226.58
  4. Step 4: Simplify right side
    571,358.46x = 246,965,876,044.65
  5. Step 5: Solve for x
    x = 246,965,876,044.65/571,358.46
  6. Step 6: Final answer
    x = 432,243.32

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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.