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Finding the Fourth Proportional to 554,767.25, 765,598.43 and 313,035.71

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Solution

The fourth proportional to 554,767.25, 765,598.43 and 313,035.71 is: 432,000.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,767.25 : 765,598.43 = 313,035.71 : x
  2. Step 2: Convert to fraction form
    554,767.25/765,598.43 = 313,035.71/x
  3. Step 3: Cross multiply
    554,767.25x = 765,598.43 × 313,035.71
  4. Step 4: Simplify right side
    554,767.25x = 239,659,645,064.53
  5. Step 5: Solve for x
    x = 239,659,645,064.53/554,767.25
  6. Step 6: Final answer
    x = 432,000.35

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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.