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Finding the Fourth Proportional to 606,698.90, 910,376.40 and 251,748.80

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Solution

The fourth proportional to 606,698.90, 910,376.40 and 251,748.80 is: 377,759.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,698.90 : 910,376.40 = 251,748.80 : x
  2. Step 2: Convert to fraction form
    606,698.90/910,376.40 = 251,748.80/x
  3. Step 3: Cross multiply
    606,698.90x = 910,376.40 × 251,748.80
  4. Step 4: Simplify right side
    606,698.90x = 229,186,166,248.32
  5. Step 5: Solve for x
    x = 229,186,166,248.32/606,698.90
  6. Step 6: Final answer
    x = 377,759.32

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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.