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Finding the Fourth Proportional to 554,244.32, 765,063.93 and 431,493.48

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Solution

The fourth proportional to 554,244.32, 765,063.93 and 431,493.48 is: 595,621.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,244.32 : 765,063.93 = 431,493.48 : x
  2. Step 2: Convert to fraction form
    554,244.32/765,063.93 = 431,493.48/x
  3. Step 3: Cross multiply
    554,244.32x = 765,063.93 × 431,493.48
  4. Step 4: Simplify right side
    554,244.32x = 330,120,099,196.28
  5. Step 5: Solve for x
    x = 330,120,099,196.28/554,244.32
  6. Step 6: Final answer
    x = 595,621.98

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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.