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Finding the Fourth Proportional to 636,166.63, 877,900.11 and 349,680.56

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Solution

The fourth proportional to 636,166.63, 877,900.11 and 349,680.56 is: 482,553.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,166.63 : 877,900.11 = 349,680.56 : x
  2. Step 2: Convert to fraction form
    636,166.63/877,900.11 = 349,680.56/x
  3. Step 3: Cross multiply
    636,166.63x = 877,900.11 × 349,680.56
  4. Step 4: Simplify right side
    636,166.63x = 306,984,602,088.86
  5. Step 5: Solve for x
    x = 306,984,602,088.86/636,166.63
  6. Step 6: Final answer
    x = 482,553.76

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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.