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Finding the Fourth Proportional to 264,458.95, 396,685.69 and 64,780.38

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Solution

The fourth proportional to 264,458.95, 396,685.69 and 64,780.38 is: 97,169.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,458.95 : 396,685.69 = 64,780.38 : x
  2. Step 2: Convert to fraction form
    264,458.95/396,685.69 = 64,780.38/x
  3. Step 3: Cross multiply
    264,458.95x = 396,685.69 × 64,780.38
  4. Step 4: Simplify right side
    264,458.95x = 25,697,449,576.81
  5. Step 5: Solve for x
    x = 25,697,449,576.81/264,458.95
  6. Step 6: Final answer
    x = 97,169.90

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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.