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Finding the Fourth Proportional to 619,424.92, 929,049.90 and 198,646.12

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Solution

The fourth proportional to 619,424.92, 929,049.90 and 198,646.12 is: 297,941.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,424.92 : 929,049.90 = 198,646.12 : x
  2. Step 2: Convert to fraction form
    619,424.92/929,049.90 = 198,646.12/x
  3. Step 3: Cross multiply
    619,424.92x = 929,049.90 × 198,646.12
  4. Step 4: Simplify right side
    619,424.92x = 184,552,157,921.39
  5. Step 5: Solve for x
    x = 184,552,157,921.39/619,424.92
  6. Step 6: Final answer
    x = 297,941.13

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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.