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Finding the Fourth Proportional to 557,398.04, 835,511.34 and 272,695.40

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Solution

The fourth proportional to 557,398.04, 835,511.34 and 272,695.40 is: 408,756.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,398.04 : 835,511.34 = 272,695.40 : x
  2. Step 2: Convert to fraction form
    557,398.04/835,511.34 = 272,695.40/x
  3. Step 3: Cross multiply
    557,398.04x = 835,511.34 × 272,695.40
  4. Step 4: Simplify right side
    557,398.04x = 227,840,099,065.84
  5. Step 5: Solve for x
    x = 227,840,099,065.84/557,398.04
  6. Step 6: Final answer
    x = 408,756.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.