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Finding the Fourth Proportional to 626,007.17, 863,909.44 and 354,069.74

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Solution

The fourth proportional to 626,007.17, 863,909.44 and 354,069.74 is: 488,627.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,007.17 : 863,909.44 = 354,069.74 : x
  2. Step 2: Convert to fraction form
    626,007.17/863,909.44 = 354,069.74/x
  3. Step 3: Cross multiply
    626,007.17x = 863,909.44 × 354,069.74
  4. Step 4: Simplify right side
    626,007.17x = 305,884,190,804.35
  5. Step 5: Solve for x
    x = 305,884,190,804.35/626,007.17
  6. Step 6: Final answer
    x = 488,627.30

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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.