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Finding the Fourth Proportional to 533,320.20, 800,417.70 and 515,824.20

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Solution

The fourth proportional to 533,320.20, 800,417.70 and 515,824.20 is: 774,159.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,320.20 : 800,417.70 = 515,824.20 : x
  2. Step 2: Convert to fraction form
    533,320.20/800,417.70 = 515,824.20/x
  3. Step 3: Cross multiply
    533,320.20x = 800,417.70 × 515,824.20
  4. Step 4: Simplify right side
    533,320.20x = 412,874,819,768.34
  5. Step 5: Solve for x
    x = 412,874,819,768.34/533,320.20
  6. Step 6: Final answer
    x = 774,159.35

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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.