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Finding the Fourth Proportional to 554,827.84, 765,662.16 and 313,161.10

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Solution

The fourth proportional to 554,827.84, 765,662.16 and 313,161.10 is: 432,162.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,827.84 : 765,662.16 = 313,161.10 : x
  2. Step 2: Convert to fraction form
    554,827.84/765,662.16 = 313,161.10/x
  3. Step 3: Cross multiply
    554,827.84x = 765,662.16 × 313,161.10
  4. Step 4: Simplify right side
    554,827.84x = 239,775,604,253.98
  5. Step 5: Solve for x
    x = 239,775,604,253.98/554,827.84
  6. Step 6: Final answer
    x = 432,162.17

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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.