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Finding the Fourth Proportional to 370,218.60, 555,327.90 and 341,350.20

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Solution

The fourth proportional to 370,218.60, 555,327.90 and 341,350.20 is: 512,025.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,218.60 : 555,327.90 = 341,350.20 : x
  2. Step 2: Convert to fraction form
    370,218.60/555,327.90 = 341,350.20/x
  3. Step 3: Cross multiply
    370,218.60x = 555,327.90 × 341,350.20
  4. Step 4: Simplify right side
    370,218.60x = 189,561,289,730.58
  5. Step 5: Solve for x
    x = 189,561,289,730.58/370,218.60
  6. Step 6: Final answer
    x = 512,025.30

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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.