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Finding the Fourth Proportional to 352,718.85, 486,807.03 and 199,764.93

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Solution

The fourth proportional to 352,718.85, 486,807.03 and 199,764.93 is: 275,706.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,718.85 : 486,807.03 = 199,764.93 : x
  2. Step 2: Convert to fraction form
    352,718.85/486,807.03 = 199,764.93/x
  3. Step 3: Cross multiply
    352,718.85x = 486,807.03 × 199,764.93
  4. Step 4: Simplify right side
    352,718.85x = 97,246,972,271.46
  5. Step 5: Solve for x
    x = 97,246,972,271.46/352,718.85
  6. Step 6: Final answer
    x = 275,706.76

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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.