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Finding the Fourth Proportional to 626,006.17, 863,908.06 and 354,068.74

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Solution

The fourth proportional to 626,006.17, 863,908.06 and 354,068.74 is: 488,625.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,006.17 : 863,908.06 = 354,068.74 : x
  2. Step 2: Convert to fraction form
    626,006.17/863,908.06 = 354,068.74/x
  3. Step 3: Cross multiply
    626,006.17x = 863,908.06 × 354,068.74
  4. Step 4: Simplify right side
    626,006.17x = 305,882,837,005.45
  5. Step 5: Solve for x
    x = 305,882,837,005.45/626,006.17
  6. Step 6: Final answer
    x = 488,625.92

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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.