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Finding the Fourth Proportional to 650,387.43, 973,186.38 and 393,303.15

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Solution

The fourth proportional to 650,387.43, 973,186.38 and 393,303.15 is: 588,506.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,387.43 : 973,186.38 = 393,303.15 : x
  2. Step 2: Convert to fraction form
    650,387.43/973,186.38 = 393,303.15/x
  3. Step 3: Cross multiply
    650,387.43x = 973,186.38 × 393,303.15
  4. Step 4: Simplify right side
    650,387.43x = 382,757,268,791.10
  5. Step 5: Solve for x
    x = 382,757,268,791.10/650,387.43
  6. Step 6: Final answer
    x = 588,506.56

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Double scale
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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.