Home / 403,916.80-605,875.20-193,446.40

Finding the Fourth Proportional to 403,916.80, 605,875.20 and 193,446.40

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Solution

The fourth proportional to 403,916.80, 605,875.20 and 193,446.40 is: 290,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,916.80 : 605,875.20 = 193,446.40 : x
  2. Step 2: Convert to fraction form
    403,916.80/605,875.20 = 193,446.40/x
  3. Step 3: Cross multiply
    403,916.80x = 605,875.20 × 193,446.40
  4. Step 4: Simplify right side
    403,916.80x = 117,204,376,289.28
  5. Step 5: Solve for x
    x = 117,204,376,289.28/403,916.80
  6. Step 6: Final answer
    x = 290,169.60

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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.