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Finding the Fourth Proportional to 341,509.20, 512,458.20 and 236,403.60

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Solution

The fourth proportional to 341,509.20, 512,458.20 and 236,403.60 is: 354,739.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,509.20 : 512,458.20 = 236,403.60 : x
  2. Step 2: Convert to fraction form
    341,509.20/512,458.20 = 236,403.60/x
  3. Step 3: Cross multiply
    341,509.20x = 512,458.20 × 236,403.60
  4. Step 4: Simplify right side
    341,509.20x = 121,146,963,329.52
  5. Step 5: Solve for x
    x = 121,146,963,329.52/341,509.20
  6. Step 6: Final answer
    x = 354,739.97

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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.