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Finding the Fourth Proportional to 605,542.60, 908,313.90 and 512,230.60

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Solution

The fourth proportional to 605,542.60, 908,313.90 and 512,230.60 is: 768,345.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,542.60 : 908,313.90 = 512,230.60 : x
  2. Step 2: Convert to fraction form
    605,542.60/908,313.90 = 512,230.60/x
  3. Step 3: Cross multiply
    605,542.60x = 908,313.90 × 512,230.60
  4. Step 4: Simplify right side
    605,542.60x = 465,266,173,985.34
  5. Step 5: Solve for x
    x = 465,266,173,985.34/605,542.60
  6. Step 6: Final answer
    x = 768,345.90

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Similar ratio
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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.