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Finding the Fourth Proportional to 587,194.10, 810,289.49 and 345,429.96

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Solution

The fourth proportional to 587,194.10, 810,289.49 and 345,429.96 is: 476,670.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,194.10 : 810,289.49 = 345,429.96 : x
  2. Step 2: Convert to fraction form
    587,194.10/810,289.49 = 345,429.96/x
  3. Step 3: Cross multiply
    587,194.10x = 810,289.49 × 345,429.96
  4. Step 4: Simplify right side
    587,194.10x = 279,898,266,119.12
  5. Step 5: Solve for x
    x = 279,898,266,119.12/587,194.10
  6. Step 6: Final answer
    x = 476,670.77

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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.