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Finding the Fourth Proportional to 531,609.06, 733,638.22 and 289,904.86

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Solution

The fourth proportional to 531,609.06, 733,638.22 and 289,904.86 is: 400,078.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,609.06 : 733,638.22 = 289,904.86 : x
  2. Step 2: Convert to fraction form
    531,609.06/733,638.22 = 289,904.86/x
  3. Step 3: Cross multiply
    531,609.06x = 733,638.22 × 289,904.86
  4. Step 4: Simplify right side
    531,609.06x = 212,685,282,900.89
  5. Step 5: Solve for x
    x = 212,685,282,900.89/531,609.06
  6. Step 6: Final answer
    x = 400,078.36

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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.