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Finding the Fourth Proportional to 554,971.34, 765,860.44 and 300,322.52

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Solution

The fourth proportional to 554,971.34, 765,860.44 and 300,322.52 is: 414,445.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,971.34 : 765,860.44 = 300,322.52 : x
  2. Step 2: Convert to fraction form
    554,971.34/765,860.44 = 300,322.52/x
  3. Step 3: Cross multiply
    554,971.34x = 765,860.44 × 300,322.52
  4. Step 4: Simplify right side
    554,971.34x = 230,005,137,309.11
  5. Step 5: Solve for x
    x = 230,005,137,309.11/554,971.34
  6. Step 6: Final answer
    x = 414,445.07

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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.