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Finding the Fourth Proportional to 554,404.80, 831,709.80 and 175,420.95

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Solution

The fourth proportional to 554,404.80, 831,709.80 and 175,420.95 is: 263,163.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,404.80 : 831,709.80 = 175,420.95 : x
  2. Step 2: Convert to fraction form
    554,404.80/831,709.80 = 175,420.95/x
  3. Step 3: Cross multiply
    554,404.80x = 831,709.80 × 175,420.95
  4. Step 4: Simplify right side
    554,404.80x = 145,899,323,240.31
  5. Step 5: Solve for x
    x = 145,899,323,240.31/554,404.80
  6. Step 6: Final answer
    x = 263,163.89

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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.