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Finding the Fourth Proportional to 572,698.36, 790,719.12 and 357,934.96

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Solution

The fourth proportional to 572,698.36, 790,719.12 and 357,934.96 is: 494,197.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,698.36 : 790,719.12 = 357,934.96 : x
  2. Step 2: Convert to fraction form
    572,698.36/790,719.12 = 357,934.96/x
  3. Step 3: Cross multiply
    572,698.36x = 790,719.12 × 357,934.96
  4. Step 4: Simplify right side
    572,698.36x = 283,026,016,588.44
  5. Step 5: Solve for x
    x = 283,026,016,588.44/572,698.36
  6. Step 6: Final answer
    x = 494,197.36

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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.