Home / 294,916.38-406,856.49-187,428.78

Finding the Fourth Proportional to 294,916.38, 406,856.49 and 187,428.78

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Solution

The fourth proportional to 294,916.38, 406,856.49 and 187,428.78 is: 258,570.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,916.38 : 406,856.49 = 187,428.78 : x
  2. Step 2: Convert to fraction form
    294,916.38/406,856.49 = 187,428.78/x
  3. Step 3: Cross multiply
    294,916.38x = 406,856.49 × 187,428.78
  4. Step 4: Simplify right side
    294,916.38x = 76,256,615,555.78
  5. Step 5: Solve for x
    x = 76,256,615,555.78/294,916.38
  6. Step 6: Final answer
    x = 258,570.30

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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.