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Finding the Fourth Proportional to 328,830.80, 493,246.20 and 107,214.80

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Solution

The fourth proportional to 328,830.80, 493,246.20 and 107,214.80 is: 160,822.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,830.80 : 493,246.20 = 107,214.80 : x
  2. Step 2: Convert to fraction form
    328,830.80/493,246.20 = 107,214.80/x
  3. Step 3: Cross multiply
    328,830.80x = 493,246.20 × 107,214.80
  4. Step 4: Simplify right side
    328,830.80x = 52,883,292,683.76
  5. Step 5: Solve for x
    x = 52,883,292,683.76/328,830.80
  6. Step 6: Final answer
    x = 160,822.20

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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.