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Finding the Fourth Proportional to 626,064.84, 863,970.98 and 339,584.92

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Solution

The fourth proportional to 626,064.84, 863,970.98 and 339,584.92 is: 468,628.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,064.84 : 863,970.98 = 339,584.92 : x
  2. Step 2: Convert to fraction form
    626,064.84/863,970.98 = 339,584.92/x
  3. Step 3: Cross multiply
    626,064.84x = 863,970.98 × 339,584.92
  4. Step 4: Simplify right side
    626,064.84x = 293,391,512,267.77
  5. Step 5: Solve for x
    x = 293,391,512,267.77/626,064.84
  6. Step 6: Final answer
    x = 468,628.00

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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.