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Finding the Fourth Proportional to 275,713.08, 380,628.58 and 185,543.16

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Solution

The fourth proportional to 275,713.08, 380,628.58 and 185,543.16 is: 256,146.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,713.08 : 380,628.58 = 185,543.16 : x
  2. Step 2: Convert to fraction form
    275,713.08/380,628.58 = 185,543.16/x
  3. Step 3: Cross multiply
    275,713.08x = 380,628.58 × 185,543.16
  4. Step 4: Simplify right side
    275,713.08x = 70,623,029,519.51
  5. Step 5: Solve for x
    x = 70,623,029,519.51/275,713.08
  6. Step 6: Final answer
    x = 256,146.82

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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.