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Finding the Fourth Proportional to 603,914.40, 906,260.40 and 351,194.40

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Solution

The fourth proportional to 603,914.40, 906,260.40 and 351,194.40 is: 527,017.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,914.40 : 906,260.40 = 351,194.40 : x
  2. Step 2: Convert to fraction form
    603,914.40/906,260.40 = 351,194.40/x
  3. Step 3: Cross multiply
    603,914.40x = 906,260.40 × 351,194.40
  4. Step 4: Simplify right side
    603,914.40x = 318,273,577,421.76
  5. Step 5: Solve for x
    x = 318,273,577,421.76/603,914.40
  6. Step 6: Final answer
    x = 527,017.70

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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.