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Finding the Fourth Proportional to 349,054.40, 522,026.40 and 293,067.20

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Solution

The fourth proportional to 349,054.40, 522,026.40 and 293,067.20 is: 438,295.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,054.40 : 522,026.40 = 293,067.20 : x
  2. Step 2: Convert to fraction form
    349,054.40/522,026.40 = 293,067.20/x
  3. Step 3: Cross multiply
    349,054.40x = 522,026.40 × 293,067.20
  4. Step 4: Simplify right side
    349,054.40x = 152,988,815,374.08
  5. Step 5: Solve for x
    x = 152,988,815,374.08/349,054.40
  6. Step 6: Final answer
    x = 438,295.05

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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.