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Finding the Fourth Proportional to 660,198.06, 911,095.02 and 373,712.13

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Solution

The fourth proportional to 660,198.06, 911,095.02 and 373,712.13 is: 515,735.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,198.06 : 911,095.02 = 373,712.13 : x
  2. Step 2: Convert to fraction form
    660,198.06/911,095.02 = 373,712.13/x
  3. Step 3: Cross multiply
    660,198.06x = 911,095.02 × 373,712.13
  4. Step 4: Simplify right side
    660,198.06x = 340,487,260,556.59
  5. Step 5: Solve for x
    x = 340,487,260,556.59/660,198.06
  6. Step 6: Final answer
    x = 515,735.02

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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.