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Finding the Fourth Proportional to 554,652.16, 765,419.41 and 300,002.74

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Solution

The fourth proportional to 554,652.16, 765,419.41 and 300,002.74 is: 414,003.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,652.16 : 765,419.41 = 300,002.74 : x
  2. Step 2: Convert to fraction form
    554,652.16/765,419.41 = 300,002.74/x
  3. Step 3: Cross multiply
    554,652.16x = 765,419.41 × 300,002.74
  4. Step 4: Simplify right side
    554,652.16x = 229,627,920,249.18
  5. Step 5: Solve for x
    x = 229,627,920,249.18/554,652.16
  6. Step 6: Final answer
    x = 414,003.47

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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.