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Finding the Fourth Proportional to 551,883.15, 761,465.74 and 322,310.11

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Solution

The fourth proportional to 551,883.15, 761,465.74 and 322,310.11 is: 444,710.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,883.15 : 761,465.74 = 322,310.11 : x
  2. Step 2: Convert to fraction form
    551,883.15/761,465.74 = 322,310.11/x
  3. Step 3: Cross multiply
    551,883.15x = 761,465.74 × 322,310.11
  4. Step 4: Simplify right side
    551,883.15x = 245,428,106,420.63
  5. Step 5: Solve for x
    x = 245,428,106,420.63/551,883.15
  6. Step 6: Final answer
    x = 444,710.27

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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.