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Finding the Fourth Proportional to 332,211.70, 498,317.55 and 330,243.40

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Solution

The fourth proportional to 332,211.70, 498,317.55 and 330,243.40 is: 495,365.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,211.70 : 498,317.55 = 330,243.40 : x
  2. Step 2: Convert to fraction form
    332,211.70/498,317.55 = 330,243.40/x
  3. Step 3: Cross multiply
    332,211.70x = 498,317.55 × 330,243.40
  4. Step 4: Simplify right side
    332,211.70x = 164,566,081,991.67
  5. Step 5: Solve for x
    x = 164,566,081,991.67/332,211.70
  6. Step 6: Final answer
    x = 495,365.10

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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.