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Finding the Fourth Proportional to 544,405.49, 751,063.81 and 314,920.19

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Solution

The fourth proportional to 544,405.49, 751,063.81 and 314,920.19 is: 434,465.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,405.49 : 751,063.81 = 314,920.19 : x
  2. Step 2: Convert to fraction form
    544,405.49/751,063.81 = 314,920.19/x
  3. Step 3: Cross multiply
    544,405.49x = 751,063.81 × 314,920.19
  4. Step 4: Simplify right side
    544,405.49x = 236,525,157,747.32
  5. Step 5: Solve for x
    x = 236,525,157,747.32/544,405.49
  6. Step 6: Final answer
    x = 434,465.05

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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.