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Finding the Fourth Proportional to 554,995.62, 765,255.51 and 410,011.20

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Solution

The fourth proportional to 554,995.62, 765,255.51 and 410,011.20 is: 565,343.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,995.62 : 765,255.51 = 410,011.20 : x
  2. Step 2: Convert to fraction form
    554,995.62/765,255.51 = 410,011.20/x
  3. Step 3: Cross multiply
    554,995.62x = 765,255.51 × 410,011.20
  4. Step 4: Simplify right side
    554,995.62x = 313,763,329,961.71
  5. Step 5: Solve for x
    x = 313,763,329,961.71/554,995.62
  6. Step 6: Final answer
    x = 565,343.79

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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.