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Finding the Fourth Proportional to 636,419.03, 954,892.89 and 257,607.56

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Solution

The fourth proportional to 636,419.03, 954,892.89 and 257,607.56 is: 386,518.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,419.03 : 954,892.89 = 257,607.56 : x
  2. Step 2: Convert to fraction form
    636,419.03/954,892.89 = 257,607.56/x
  3. Step 3: Cross multiply
    636,419.03x = 954,892.89 × 257,607.56
  4. Step 4: Simplify right side
    636,419.03x = 245,987,627,454.25
  5. Step 5: Solve for x
    x = 245,987,627,454.25/636,419.03
  6. Step 6: Final answer
    x = 386,518.34

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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.