Home / 278,767.38-384,700.53-171,407.55

Finding the Fourth Proportional to 278,767.38, 384,700.53 and 171,407.55

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Solution

The fourth proportional to 278,767.38, 384,700.53 and 171,407.55 is: 236,543.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,767.38 : 384,700.53 = 171,407.55 : x
  2. Step 2: Convert to fraction form
    278,767.38/384,700.53 = 171,407.55/x
  3. Step 3: Cross multiply
    278,767.38x = 384,700.53 × 171,407.55
  4. Step 4: Simplify right side
    278,767.38x = 65,940,575,331.00
  5. Step 5: Solve for x
    x = 65,940,575,331.00/278,767.38
  6. Step 6: Final answer
    x = 236,543.37

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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.