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Finding the Fourth Proportional to 679,066.39, 936,469.26 and 446,082

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Solution

The fourth proportional to 679,066.39, 936,469.26 and 446,082 is: 615,171.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,066.39 : 936,469.26 = 446,082 : x
  2. Step 2: Convert to fraction form
    679,066.39/936,469.26 = 446,082/x
  3. Step 3: Cross multiply
    679,066.39x = 936,469.26 × 446,082
  4. Step 4: Simplify right side
    679,066.39x = 417,742,080,439.32
  5. Step 5: Solve for x
    x = 417,742,080,439.32/679,066.39
  6. Step 6: Final answer
    x = 615,171.19

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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.