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Finding the Fourth Proportional to 544,703.40, 817,055.10 and 278,375.40

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Solution

The fourth proportional to 544,703.40, 817,055.10 and 278,375.40 is: 417,563.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,703.40 : 817,055.10 = 278,375.40 : x
  2. Step 2: Convert to fraction form
    544,703.40/817,055.10 = 278,375.40/x
  3. Step 3: Cross multiply
    544,703.40x = 817,055.10 × 278,375.40
  4. Step 4: Simplify right side
    544,703.40x = 227,448,040,284.54
  5. Step 5: Solve for x
    x = 227,448,040,284.54/544,703.40
  6. Step 6: Final answer
    x = 417,563.10

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Similar ratio
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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.