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Finding the Fourth Proportional to 357,556.20, 536,334.30 and 189,011.40

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Solution

The fourth proportional to 357,556.20, 536,334.30 and 189,011.40 is: 283,517.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,556.20 : 536,334.30 = 189,011.40 : x
  2. Step 2: Convert to fraction form
    357,556.20/536,334.30 = 189,011.40/x
  3. Step 3: Cross multiply
    357,556.20x = 536,334.30 × 189,011.40
  4. Step 4: Simplify right side
    357,556.20x = 101,373,296,911.02
  5. Step 5: Solve for x
    x = 101,373,296,911.02/357,556.20
  6. Step 6: Final answer
    x = 283,517.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.