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Finding the Fourth Proportional to 626,106, 939,306.43 and 498,504.90

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Solution

The fourth proportional to 626,106, 939,306.43 and 498,504.90 is: 747,874.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,106 : 939,306.43 = 498,504.90 : x
  2. Step 2: Convert to fraction form
    626,106/939,306.43 = 498,504.90/x
  3. Step 3: Cross multiply
    626,106x = 939,306.43 × 498,504.90
  4. Step 4: Simplify right side
    626,106x = 468,248,857,956.51
  5. Step 5: Solve for x
    x = 468,248,857,956.51/626,106
  6. Step 6: Final answer
    x = 747,874.73

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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.