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Finding the Fourth Proportional to 488,037.80, 730,631.10 and 348,069.80

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Solution

The fourth proportional to 488,037.80, 730,631.10 and 348,069.80 is: 521,087.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,037.80 : 730,631.10 = 348,069.80 : x
  2. Step 2: Convert to fraction form
    488,037.80/730,631.10 = 348,069.80/x
  3. Step 3: Cross multiply
    488,037.80x = 730,631.10 × 348,069.80
  4. Step 4: Simplify right side
    488,037.80x = 254,310,620,850.78
  5. Step 5: Solve for x
    x = 254,310,620,850.78/488,037.80
  6. Step 6: Final answer
    x = 521,087.96

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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.