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Finding the Fourth Proportional to 395,919.92, 546,345.96 and 234,790.16

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Solution

The fourth proportional to 395,919.92, 546,345.96 and 234,790.16 is: 323,996.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,919.92 : 546,345.96 = 234,790.16 : x
  2. Step 2: Convert to fraction form
    395,919.92/546,345.96 = 234,790.16/x
  3. Step 3: Cross multiply
    395,919.92x = 546,345.96 × 234,790.16
  4. Step 4: Simplify right side
    395,919.92x = 128,276,655,363.75
  5. Step 5: Solve for x
    x = 128,276,655,363.75/395,919.92
  6. Step 6: Final answer
    x = 323,996.47

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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.