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Finding the Fourth Proportional to 636,196.92, 877,929.48 and 349,714.95

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Solution

The fourth proportional to 636,196.92, 877,929.48 and 349,714.95 is: 482,594.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,196.92 : 877,929.48 = 349,714.95 : x
  2. Step 2: Convert to fraction form
    636,196.92/877,929.48 = 349,714.95/x
  3. Step 3: Cross multiply
    636,196.92x = 877,929.48 × 349,714.95
  4. Step 4: Simplify right side
    636,196.92x = 307,025,064,201.73
  5. Step 5: Solve for x
    x = 307,025,064,201.73/636,196.92
  6. Step 6: Final answer
    x = 482,594.39

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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.