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Finding the Fourth Proportional to 542,169.51, 812,149.83 and 256,995.69

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Solution

The fourth proportional to 542,169.51, 812,149.83 and 256,995.69 is: 384,970.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,169.51 : 812,149.83 = 256,995.69 : x
  2. Step 2: Convert to fraction form
    542,169.51/812,149.83 = 256,995.69/x
  3. Step 3: Cross multiply
    542,169.51x = 812,149.83 × 256,995.69
  4. Step 4: Simplify right side
    542,169.51x = 208,719,005,944.23
  5. Step 5: Solve for x
    x = 208,719,005,944.23/542,169.51
  6. Step 6: Final answer
    x = 384,970.02

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1.5x scale

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.