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Finding the Fourth Proportional to 606,643.10, 910,713.45 and 382,003.10

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Solution

The fourth proportional to 606,643.10, 910,713.45 and 382,003.10 is: 573,476.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,643.10 : 910,713.45 = 382,003.10 : x
  2. Step 2: Convert to fraction form
    606,643.10/910,713.45 = 382,003.10/x
  3. Step 3: Cross multiply
    606,643.10x = 910,713.45 × 382,003.10
  4. Step 4: Simplify right side
    606,643.10x = 347,895,361,111.70
  5. Step 5: Solve for x
    x = 347,895,361,111.70/606,643.10
  6. Step 6: Final answer
    x = 573,476.17

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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.