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Finding the Fourth Proportional to 330,762.96, 496,308.45 and 131,078.93

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Solution

The fourth proportional to 330,762.96, 496,308.45 and 131,078.93 is: 196,683.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,762.96 : 496,308.45 = 131,078.93 : x
  2. Step 2: Convert to fraction form
    330,762.96/496,308.45 = 131,078.93/x
  3. Step 3: Cross multiply
    330,762.96x = 496,308.45 × 131,078.93
  4. Step 4: Simplify right side
    330,762.96x = 65,055,578,094.42
  5. Step 5: Solve for x
    x = 65,055,578,094.42/330,762.96
  6. Step 6: Final answer
    x = 196,683.38

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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.