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Finding the Fourth Proportional to 437,985, 604,419.30 and 236,781

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Solution

The fourth proportional to 437,985, 604,419.30 and 236,781 is: 326,757.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,985 : 604,419.30 = 236,781 : x
  2. Step 2: Convert to fraction form
    437,985/604,419.30 = 236,781/x
  3. Step 3: Cross multiply
    437,985x = 604,419.30 × 236,781
  4. Step 4: Simplify right side
    437,985x = 143,115,006,273.30
  5. Step 5: Solve for x
    x = 143,115,006,273.30/437,985
  6. Step 6: Final answer
    x = 326,757.78

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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.