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Finding the Fourth Proportional to 459,143.60, 687,354.60 and 341,337.20

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Solution

The fourth proportional to 459,143.60, 687,354.60 and 341,337.20 is: 510,994.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,143.60 : 687,354.60 = 341,337.20 : x
  2. Step 2: Convert to fraction form
    459,143.60/687,354.60 = 341,337.20/x
  3. Step 3: Cross multiply
    459,143.60x = 687,354.60 × 341,337.20
  4. Step 4: Simplify right side
    459,143.60x = 234,619,694,571.12
  5. Step 5: Solve for x
    x = 234,619,694,571.12/459,143.60
  6. Step 6: Final answer
    x = 510,994.15

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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.