Home / 320,715.66-442,557.55-191,628.44

Finding the Fourth Proportional to 320,715.66, 442,557.55 and 191,628.44

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Solution

The fourth proportional to 320,715.66, 442,557.55 and 191,628.44 is: 264,429.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,715.66 : 442,557.55 = 191,628.44 : x
  2. Step 2: Convert to fraction form
    320,715.66/442,557.55 = 191,628.44/x
  3. Step 3: Cross multiply
    320,715.66x = 442,557.55 × 191,628.44
  4. Step 4: Simplify right side
    320,715.66x = 84,806,612,916.72
  5. Step 5: Solve for x
    x = 84,806,612,916.72/320,715.66
  6. Step 6: Final answer
    x = 264,429.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.