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Finding the Fourth Proportional to 572,980.10, 790,712.37 and 314,873.66

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Solution

The fourth proportional to 572,980.10, 790,712.37 and 314,873.66 is: 434,525.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,980.10 : 790,712.37 = 314,873.66 : x
  2. Step 2: Convert to fraction form
    572,980.10/790,712.37 = 314,873.66/x
  3. Step 3: Cross multiply
    572,980.10x = 790,712.37 × 314,873.66
  4. Step 4: Simplify right side
    572,980.10x = 248,974,497,949.17
  5. Step 5: Solve for x
    x = 248,974,497,949.17/572,980.10
  6. Step 6: Final answer
    x = 434,525.56

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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.