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Finding the Fourth Proportional to 533,909.80, 799,698.30 and 414,645.40

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Solution

The fourth proportional to 533,909.80, 799,698.30 and 414,645.40 is: 621,062.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,909.80 : 799,698.30 = 414,645.40 : x
  2. Step 2: Convert to fraction form
    533,909.80/799,698.30 = 414,645.40/x
  3. Step 3: Cross multiply
    533,909.80x = 799,698.30 × 414,645.40
  4. Step 4: Simplify right side
    533,909.80x = 331,591,221,482.82
  5. Step 5: Solve for x
    x = 331,591,221,482.82/533,909.80
  6. Step 6: Final answer
    x = 621,062.25

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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.