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Finding the Fourth Proportional to 626,474.17, 864,535.04 and 339,994.45

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Solution

The fourth proportional to 626,474.17, 864,535.04 and 339,994.45 is: 469,192.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,474.17 : 864,535.04 = 339,994.45 : x
  2. Step 2: Convert to fraction form
    626,474.17/864,535.04 = 339,994.45/x
  3. Step 3: Cross multiply
    626,474.17x = 864,535.04 × 339,994.45
  4. Step 4: Simplify right side
    626,474.17x = 293,937,115,430.53
  5. Step 5: Solve for x
    x = 293,937,115,430.53/626,474.17
  6. Step 6: Final answer
    x = 469,192.71

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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.