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Finding the Fourth Proportional to 703,864.38, 971,709.72 and 550,576.89

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Solution

The fourth proportional to 703,864.38, 971,709.72 and 550,576.89 is: 760,090.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,864.38 : 971,709.72 = 550,576.89 : x
  2. Step 2: Convert to fraction form
    703,864.38/971,709.72 = 550,576.89/x
  3. Step 3: Cross multiply
    703,864.38x = 971,709.72 × 550,576.89
  4. Step 4: Simplify right side
    703,864.38x = 535,000,915,620.37
  5. Step 5: Solve for x
    x = 535,000,915,620.37/703,864.38
  6. Step 6: Final answer
    x = 760,090.91

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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.