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Finding the Fourth Proportional to 289,007.60, 433,511.40 and 236,476.40

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Solution

The fourth proportional to 289,007.60, 433,511.40 and 236,476.40 is: 354,714.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,007.60 : 433,511.40 = 236,476.40 : x
  2. Step 2: Convert to fraction form
    289,007.60/433,511.40 = 236,476.40/x
  3. Step 3: Cross multiply
    289,007.60x = 433,511.40 × 236,476.40
  4. Step 4: Simplify right side
    289,007.60x = 102,515,215,230.96
  5. Step 5: Solve for x
    x = 102,515,215,230.96/289,007.60
  6. Step 6: Final answer
    x = 354,714.60

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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.