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Finding the Fourth Proportional to 439,600.40, 659,400.60 and 333,312.20

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Solution

The fourth proportional to 439,600.40, 659,400.60 and 333,312.20 is: 499,968.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,600.40 : 659,400.60 = 333,312.20 : x
  2. Step 2: Convert to fraction form
    439,600.40/659,400.60 = 333,312.20/x
  3. Step 3: Cross multiply
    439,600.40x = 659,400.60 × 333,312.20
  4. Step 4: Simplify right side
    439,600.40x = 219,786,264,667.32
  5. Step 5: Solve for x
    x = 219,786,264,667.32/439,600.40
  6. Step 6: Final answer
    x = 499,968.30

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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.