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Finding the Fourth Proportional to 488,432.80, 733,426.80 and 331,357.60

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Solution

The fourth proportional to 488,432.80, 733,426.80 and 331,357.60 is: 497,563.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,432.80 : 733,426.80 = 331,357.60 : x
  2. Step 2: Convert to fraction form
    488,432.80/733,426.80 = 331,357.60/x
  3. Step 3: Cross multiply
    488,432.80x = 733,426.80 × 331,357.60
  4. Step 4: Simplify right side
    488,432.80x = 243,026,544,223.68
  5. Step 5: Solve for x
    x = 243,026,544,223.68/488,432.80
  6. Step 6: Final answer
    x = 497,563.93

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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.