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Finding the Fourth Proportional to 554,352.74, 765,006.84 and 299,703.86

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Solution

The fourth proportional to 554,352.74, 765,006.84 and 299,703.86 is: 413,591.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,352.74 : 765,006.84 = 299,703.86 : x
  2. Step 2: Convert to fraction form
    554,352.74/765,006.84 = 299,703.86/x
  3. Step 3: Cross multiply
    554,352.74x = 765,006.84 × 299,703.86
  4. Step 4: Simplify right side
    554,352.74x = 229,275,502,874.40
  5. Step 5: Solve for x
    x = 229,275,502,874.40/554,352.74
  6. Step 6: Final answer
    x = 413,591.36

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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.