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Finding the Fourth Proportional to 526,016.36, 726,166.55 and 345,005.66

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Solution

The fourth proportional to 526,016.36, 726,166.55 and 345,005.66 is: 476,280.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,016.36 : 726,166.55 = 345,005.66 : x
  2. Step 2: Convert to fraction form
    526,016.36/726,166.55 = 345,005.66/x
  3. Step 3: Cross multiply
    526,016.36x = 726,166.55 × 345,005.66
  4. Step 4: Simplify right side
    526,016.36x = 250,531,572,530.60
  5. Step 5: Solve for x
    x = 250,531,572,530.60/526,016.36
  6. Step 6: Final answer
    x = 476,280.95

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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.