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Finding the Fourth Proportional to 357,353.56, 493,154.04 and 196,215.40

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Solution

The fourth proportional to 357,353.56, 493,154.04 and 196,215.40 is: 270,780.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,353.56 : 493,154.04 = 196,215.40 : x
  2. Step 2: Convert to fraction form
    357,353.56/493,154.04 = 196,215.40/x
  3. Step 3: Cross multiply
    357,353.56x = 493,154.04 × 196,215.40
  4. Step 4: Simplify right side
    357,353.56x = 96,764,417,220.22
  5. Step 5: Solve for x
    x = 96,764,417,220.22/357,353.56
  6. Step 6: Final answer
    x = 270,780.62

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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.