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Finding the Fourth Proportional to 615,401.10, 923,101.65 and 283,625.10

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Solution

The fourth proportional to 615,401.10, 923,101.65 and 283,625.10 is: 425,437.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,401.10 : 923,101.65 = 283,625.10 : x
  2. Step 2: Convert to fraction form
    615,401.10/923,101.65 = 283,625.10/x
  3. Step 3: Cross multiply
    615,401.10x = 923,101.65 × 283,625.10
  4. Step 4: Simplify right side
    615,401.10x = 261,814,797,791.42
  5. Step 5: Solve for x
    x = 261,814,797,791.42/615,401.10
  6. Step 6: Final answer
    x = 425,437.65

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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.