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Finding the Fourth Proportional to 349,243.17, 526,198.48 and 315,548.36

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Solution

The fourth proportional to 349,243.17, 526,198.48 and 315,548.36 is: 475,431.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,243.17 : 526,198.48 = 315,548.36 : x
  2. Step 2: Convert to fraction form
    349,243.17/526,198.48 = 315,548.36/x
  3. Step 3: Cross multiply
    349,243.17x = 526,198.48 × 315,548.36
  4. Step 4: Simplify right side
    349,243.17x = 166,041,064,767.50
  5. Step 5: Solve for x
    x = 166,041,064,767.50/349,243.17
  6. Step 6: Final answer
    x = 475,431.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.