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Finding the Fourth Proportional to 395,783.13, 546,208.05 and 240,794.90

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Solution

The fourth proportional to 395,783.13, 546,208.05 and 240,794.90 is: 332,313.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,783.13 : 546,208.05 = 240,794.90 : x
  2. Step 2: Convert to fraction form
    395,783.13/546,208.05 = 240,794.90/x
  3. Step 3: Cross multiply
    395,783.13x = 546,208.05 × 240,794.90
  4. Step 4: Simplify right side
    395,783.13x = 131,524,110,047.91
  5. Step 5: Solve for x
    x = 131,524,110,047.91/395,783.13
  6. Step 6: Final answer
    x = 332,313.58

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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.