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Finding the Fourth Proportional to 636,059.22, 877,396.23 and 397,180.50

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Solution

The fourth proportional to 636,059.22, 877,396.23 and 397,180.50 is: 547,880.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,059.22 : 877,396.23 = 397,180.50 : x
  2. Step 2: Convert to fraction form
    636,059.22/877,396.23 = 397,180.50/x
  3. Step 3: Cross multiply
    636,059.22x = 877,396.23 × 397,180.50
  4. Step 4: Simplify right side
    636,059.22x = 348,484,673,329.52
  5. Step 5: Solve for x
    x = 348,484,673,329.52/636,059.22
  6. Step 6: Final answer
    x = 547,880.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.