Home / 411,973.37-618,295.28-212,350.85

Finding the Fourth Proportional to 411,973.37, 618,295.28 and 212,350.85

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Solution

The fourth proportional to 411,973.37, 618,295.28 and 212,350.85 is: 318,699.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,973.37 : 618,295.28 = 212,350.85 : x
  2. Step 2: Convert to fraction form
    411,973.37/618,295.28 = 212,350.85/x
  3. Step 3: Cross multiply
    411,973.37x = 618,295.28 × 212,350.85
  4. Step 4: Simplify right side
    411,973.37x = 131,295,528,258.99
  5. Step 5: Solve for x
    x = 131,295,528,258.99/411,973.37
  6. Step 6: Final answer
    x = 318,699.07

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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.