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Finding the Fourth Proportional to 554,992.83, 765,370.35 and 368,394.30

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Solution

The fourth proportional to 554,992.83, 765,370.35 and 368,394.30 is: 508,039.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,992.83 : 765,370.35 = 368,394.30 : x
  2. Step 2: Convert to fraction form
    554,992.83/765,370.35 = 368,394.30/x
  3. Step 3: Cross multiply
    554,992.83x = 765,370.35 × 368,394.30
  4. Step 4: Simplify right side
    554,992.83x = 281,958,074,329.01
  5. Step 5: Solve for x
    x = 281,958,074,329.01/554,992.83
  6. Step 6: Final answer
    x = 508,039.13

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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.