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Finding the Fourth Proportional to 533,890.80, 799,669.80 and 414,626.40

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Solution

The fourth proportional to 533,890.80, 799,669.80 and 414,626.40 is: 621,033.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,890.80 : 799,669.80 = 414,626.40 : x
  2. Step 2: Convert to fraction form
    533,890.80/799,669.80 = 414,626.40/x
  3. Step 3: Cross multiply
    533,890.80x = 799,669.80 × 414,626.40
  4. Step 4: Simplify right side
    533,890.80x = 331,564,210,362.72
  5. Step 5: Solve for x
    x = 331,564,210,362.72/533,890.80
  6. Step 6: Final answer
    x = 621,033.76

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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.