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Finding the Fourth Proportional to 554,937.76, 765,815.44 and 300,291.68

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Solution

The fourth proportional to 554,937.76, 765,815.44 and 300,291.68 is: 414,403.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,937.76 : 765,815.44 = 300,291.68 : x
  2. Step 2: Convert to fraction form
    554,937.76/765,815.44 = 300,291.68/x
  3. Step 3: Cross multiply
    554,937.76x = 765,815.44 × 300,291.68
  4. Step 4: Simplify right side
    554,937.76x = 229,968,005,047.54
  5. Step 5: Solve for x
    x = 229,968,005,047.54/554,937.76
  6. Step 6: Final answer
    x = 414,403.24

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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.