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Finding the Fourth Proportional to 383,712.60, 536,497.80 and 383,712.60

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Solution

The fourth proportional to 383,712.60, 536,497.80 and 383,712.60 is: 536,497.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,712.60 : 536,497.80 = 383,712.60 : x
  2. Step 2: Convert to fraction form
    383,712.60/536,497.80 = 383,712.60/x
  3. Step 3: Cross multiply
    383,712.60x = 536,497.80 × 383,712.60
  4. Step 4: Simplify right side
    383,712.60x = 205,860,965,732.28
  5. Step 5: Solve for x
    x = 205,860,965,732.28/383,712.60
  6. Step 6: Final answer
    x = 536,497.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.