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Finding the Fourth Proportional to 900,674.72, 1,351,014.84 and 731,391.86

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Solution

The fourth proportional to 900,674.72, 1,351,014.84 and 731,391.86 is: 1,097,090.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,674.72 : 1,351,014.84 = 731,391.86 : x
  2. Step 2: Convert to fraction form
    900,674.72/1,351,014.84 = 731,391.86/x
  3. Step 3: Cross multiply
    900,674.72x = 1,351,014.84 × 731,391.86
  4. Step 4: Simplify right side
    900,674.72x = 988,121,256,715.20
  5. Step 5: Solve for x
    x = 988,121,256,715.20/900,674.72
  6. Step 6: Final answer
    x = 1,097,090.03

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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.