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Finding the Fourth Proportional to 349,443.78, 481,042.38 and 258,628.61

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Solution

The fourth proportional to 349,443.78, 481,042.38 and 258,628.61 is: 356,026.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,443.78 : 481,042.38 = 258,628.61 : x
  2. Step 2: Convert to fraction form
    349,443.78/481,042.38 = 258,628.61/x
  3. Step 3: Cross multiply
    349,443.78x = 481,042.38 × 258,628.61
  4. Step 4: Simplify right side
    349,443.78x = 124,411,322,090.49
  5. Step 5: Solve for x
    x = 124,411,322,090.49/349,443.78
  6. Step 6: Final answer
    x = 356,026.72

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1.5x scale

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.