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Finding the Fourth Proportional to 354,627.60, 531,941.40 and 144,416.40

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Solution

The fourth proportional to 354,627.60, 531,941.40 and 144,416.40 is: 216,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,627.60 : 531,941.40 = 144,416.40 : x
  2. Step 2: Convert to fraction form
    354,627.60/531,941.40 = 144,416.40/x
  3. Step 3: Cross multiply
    354,627.60x = 531,941.40 × 144,416.40
  4. Step 4: Simplify right side
    354,627.60x = 76,821,061,998.96
  5. Step 5: Solve for x
    x = 76,821,061,998.96/354,627.60
  6. Step 6: Final answer
    x = 216,624.60

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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.