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Finding the Fourth Proportional to 357,925.70, 493,937.78 and 196,783.49

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Solution

The fourth proportional to 357,925.70, 493,937.78 and 196,783.49 is: 271,561.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,925.70 : 493,937.78 = 196,783.49 : x
  2. Step 2: Convert to fraction form
    357,925.70/493,937.78 = 196,783.49/x
  3. Step 3: Cross multiply
    357,925.70x = 493,937.78 × 196,783.49
  4. Step 4: Simplify right side
    357,925.70x = 97,198,800,191.25
  5. Step 5: Solve for x
    x = 97,198,800,191.25/357,925.70
  6. Step 6: Final answer
    x = 271,561.39

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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.