Home / 418,266.18-626,885.33-193,322.30

Finding the Fourth Proportional to 418,266.18, 626,885.33 and 193,322.30

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Solution

The fourth proportional to 418,266.18, 626,885.33 and 193,322.30 is: 289,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,266.18 : 626,885.33 = 193,322.30 : x
  2. Step 2: Convert to fraction form
    418,266.18/626,885.33 = 193,322.30/x
  3. Step 3: Cross multiply
    418,266.18x = 626,885.33 × 193,322.30
  4. Step 4: Simplify right side
    418,266.18x = 121,190,909,730.82
  5. Step 5: Solve for x
    x = 121,190,909,730.82/418,266.18
  6. Step 6: Final answer
    x = 289,745.90

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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.