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Finding the Fourth Proportional to 554,494.64, 765,203.16 and 299,845.76

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Solution

The fourth proportional to 554,494.64, 765,203.16 and 299,845.76 is: 413,787.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,494.64 : 765,203.16 = 299,845.76 : x
  2. Step 2: Convert to fraction form
    554,494.64/765,203.16 = 299,845.76/x
  3. Step 3: Cross multiply
    554,494.64x = 765,203.16 × 299,845.76
  4. Step 4: Simplify right side
    554,494.64x = 229,442,923,064.60
  5. Step 5: Solve for x
    x = 229,442,923,064.60/554,494.64
  6. Step 6: Final answer
    x = 413,787.45

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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.