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Finding the Fourth Proportional to 575,785.82, 794,585.58 and 321,153.50

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Solution

The fourth proportional to 575,785.82, 794,585.58 and 321,153.50 is: 443,192.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,785.82 : 794,585.58 = 321,153.50 : x
  2. Step 2: Convert to fraction form
    575,785.82/794,585.58 = 321,153.50/x
  3. Step 3: Cross multiply
    575,785.82x = 794,585.58 × 321,153.50
  4. Step 4: Simplify right side
    575,785.82x = 255,183,940,066.53
  5. Step 5: Solve for x
    x = 255,183,940,066.53/575,785.82
  6. Step 6: Final answer
    x = 443,192.47

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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.