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Finding the Fourth Proportional to 533,240.47, 800,155.95 and 319,483.09

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Solution

The fourth proportional to 533,240.47, 800,155.95 and 319,483.09 is: 479,401.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,240.47 : 800,155.95 = 319,483.09 : x
  2. Step 2: Convert to fraction form
    533,240.47/800,155.95 = 319,483.09/x
  3. Step 3: Cross multiply
    533,240.47x = 800,155.95 × 319,483.09
  4. Step 4: Simplify right side
    533,240.47x = 255,636,295,387.89
  5. Step 5: Solve for x
    x = 255,636,295,387.89/533,240.47
  6. Step 6: Final answer
    x = 479,401.53

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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.