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Finding the Fourth Proportional to 554,437.51, 831,745.95 and 217,295.26

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Solution

The fourth proportional to 554,437.51, 831,745.95 and 217,295.26 is: 325,978.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,437.51 : 831,745.95 = 217,295.26 : x
  2. Step 2: Convert to fraction form
    554,437.51/831,745.95 = 217,295.26/x
  3. Step 3: Cross multiply
    554,437.51x = 831,745.95 × 217,295.26
  4. Step 4: Simplify right side
    554,437.51x = 180,734,452,459.20
  5. Step 5: Solve for x
    x = 180,734,452,459.20/554,437.51
  6. Step 6: Final answer
    x = 325,978.04

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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.