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Finding the Fourth Proportional to 485,751.22, 670,859.48 and 369,792.83

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Solution

The fourth proportional to 485,751.22, 670,859.48 and 369,792.83 is: 510,712.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,751.22 : 670,859.48 = 369,792.83 : x
  2. Step 2: Convert to fraction form
    485,751.22/670,859.48 = 369,792.83/x
  3. Step 3: Cross multiply
    485,751.22x = 670,859.48 × 369,792.83
  4. Step 4: Simplify right side
    485,751.22x = 248,079,028,243.16
  5. Step 5: Solve for x
    x = 248,079,028,243.16/485,751.22
  6. Step 6: Final answer
    x = 510,712.11

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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.