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Finding the Fourth Proportional to 350,090.76, 483,128.16 and 199,197.48

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Solution

The fourth proportional to 350,090.76, 483,128.16 and 199,197.48 is: 274,894.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,090.76 : 483,128.16 = 199,197.48 : x
  2. Step 2: Convert to fraction form
    350,090.76/483,128.16 = 199,197.48/x
  3. Step 3: Cross multiply
    350,090.76x = 483,128.16 × 199,197.48
  4. Step 4: Simplify right side
    350,090.76x = 96,237,911,989.04
  5. Step 5: Solve for x
    x = 96,237,911,989.04/350,090.76
  6. Step 6: Final answer
    x = 274,894.18

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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.