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Finding the Fourth Proportional to 503,576.84, 694,893.66 and 288,667.64

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Solution

The fourth proportional to 503,576.84, 694,893.66 and 288,667.64 is: 398,337.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,576.84 : 694,893.66 = 288,667.64 : x
  2. Step 2: Convert to fraction form
    503,576.84/694,893.66 = 288,667.64/x
  3. Step 3: Cross multiply
    503,576.84x = 694,893.66 × 288,667.64
  4. Step 4: Simplify right side
    503,576.84x = 200,593,312,883.16
  5. Step 5: Solve for x
    x = 200,593,312,883.16/503,576.84
  6. Step 6: Final answer
    x = 398,337.05

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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.