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Finding the Fourth Proportional to 492,779.99, 680,037.38 and 266,425.49

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Solution

The fourth proportional to 492,779.99, 680,037.38 and 266,425.49 is: 367,667.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,779.99 : 680,037.38 = 266,425.49 : x
  2. Step 2: Convert to fraction form
    492,779.99/680,037.38 = 266,425.49/x
  3. Step 3: Cross multiply
    492,779.99x = 680,037.38 × 266,425.49
  4. Step 4: Simplify right side
    492,779.99x = 181,179,287,452.50
  5. Step 5: Solve for x
    x = 181,179,287,452.50/492,779.99
  6. Step 6: Final answer
    x = 367,667.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.