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Finding the Fourth Proportional to 355,505.57, 533,205.89 and 130,813.80

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Solution

The fourth proportional to 355,505.57, 533,205.89 and 130,813.80 is: 196,201.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,505.57 : 533,205.89 = 130,813.80 : x
  2. Step 2: Convert to fraction form
    355,505.57/533,205.89 = 130,813.80/x
  3. Step 3: Cross multiply
    355,505.57x = 533,205.89 × 130,813.80
  4. Step 4: Simplify right side
    355,505.57x = 69,750,688,653.28
  5. Step 5: Solve for x
    x = 69,750,688,653.28/355,505.57
  6. Step 6: Final answer
    x = 196,201.39

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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.