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Finding the Fourth Proportional to 638,568.30, 957,415.05 and 301,770.30

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Solution

The fourth proportional to 638,568.30, 957,415.05 and 301,770.30 is: 452,448.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,568.30 : 957,415.05 = 301,770.30 : x
  2. Step 2: Convert to fraction form
    638,568.30/957,415.05 = 301,770.30/x
  3. Step 3: Cross multiply
    638,568.30x = 957,415.05 × 301,770.30
  4. Step 4: Simplify right side
    638,568.30x = 288,919,426,863.02
  5. Step 5: Solve for x
    x = 288,919,426,863.02/638,568.30
  6. Step 6: Final answer
    x = 452,448.75

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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.