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Finding the Fourth Proportional to 353,047.20, 487,208.04 and 191,902.20

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Solution

The fourth proportional to 353,047.20, 487,208.04 and 191,902.20 is: 264,826.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,047.20 : 487,208.04 = 191,902.20 : x
  2. Step 2: Convert to fraction form
    353,047.20/487,208.04 = 191,902.20/x
  3. Step 3: Cross multiply
    353,047.20x = 487,208.04 × 191,902.20
  4. Step 4: Simplify right side
    353,047.20x = 93,496,294,733.69
  5. Step 5: Solve for x
    x = 93,496,294,733.69/353,047.20
  6. Step 6: Final answer
    x = 264,826.61

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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.