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Finding the Fourth Proportional to 633,657.76, 948,221.88 and 550,398.94

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Solution

The fourth proportional to 633,657.76, 948,221.88 and 550,398.94 is: 823,631.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,657.76 : 948,221.88 = 550,398.94 : x
  2. Step 2: Convert to fraction form
    633,657.76/948,221.88 = 550,398.94/x
  3. Step 3: Cross multiply
    633,657.76x = 948,221.88 × 550,398.94
  4. Step 4: Simplify right side
    633,657.76x = 521,900,317,636.81
  5. Step 5: Solve for x
    x = 521,900,317,636.81/633,657.76
  6. Step 6: Final answer
    x = 823,631.23

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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.