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Finding the Fourth Proportional to 526,090.82, 726,012.99 and 296,659.13

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Solution

The fourth proportional to 526,090.82, 726,012.99 and 296,659.13 is: 409,393.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,090.82 : 726,012.99 = 296,659.13 : x
  2. Step 2: Convert to fraction form
    526,090.82/726,012.99 = 296,659.13/x
  3. Step 3: Cross multiply
    526,090.82x = 726,012.99 × 296,659.13
  4. Step 4: Simplify right side
    526,090.82x = 215,378,378,352.03
  5. Step 5: Solve for x
    x = 215,378,378,352.03/526,090.82
  6. Step 6: Final answer
    x = 409,393.91

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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.