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Finding the Fourth Proportional to 481,253.50, 721,880.26 and 148,829.50

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Solution

The fourth proportional to 481,253.50, 721,880.26 and 148,829.50 is: 223,244.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,253.50 : 721,880.26 = 148,829.50 : x
  2. Step 2: Convert to fraction form
    481,253.50/721,880.26 = 148,829.50/x
  3. Step 3: Cross multiply
    481,253.50x = 721,880.26 × 148,829.50
  4. Step 4: Simplify right side
    481,253.50x = 107,437,078,155.67
  5. Step 5: Solve for x
    x = 107,437,078,155.67/481,253.50
  6. Step 6: Final answer
    x = 223,244.25

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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.