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Finding the Fourth Proportional to 674,482.55, 930,378.56 and 444,958.25

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Solution

The fourth proportional to 674,482.55, 930,378.56 and 444,958.25 is: 613,773.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,482.55 : 930,378.56 = 444,958.25 : x
  2. Step 2: Convert to fraction form
    674,482.55/930,378.56 = 444,958.25/x
  3. Step 3: Cross multiply
    674,482.55x = 930,378.56 × 444,958.25
  4. Step 4: Simplify right side
    674,482.55x = 413,979,609,018.44
  5. Step 5: Solve for x
    x = 413,979,609,018.44/674,482.55
  6. Step 6: Final answer
    x = 613,773.64

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Double scale
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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.