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Finding the Fourth Proportional to 533,390.20, 800,522.70 and 515,894.20

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Solution

The fourth proportional to 533,390.20, 800,522.70 and 515,894.20 is: 774,264.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,390.20 : 800,522.70 = 515,894.20 : x
  2. Step 2: Convert to fraction form
    533,390.20/800,522.70 = 515,894.20/x
  3. Step 3: Cross multiply
    533,390.20x = 800,522.70 × 515,894.20
  4. Step 4: Simplify right side
    533,390.20x = 412,985,017,898.34
  5. Step 5: Solve for x
    x = 412,985,017,898.34/533,390.20
  6. Step 6: Final answer
    x = 774,264.35

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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.