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Finding the Fourth Proportional to 553,676.55, 775,672.05 and 553,676.55

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Solution

The fourth proportional to 553,676.55, 775,672.05 and 553,676.55 is: 775,672.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,676.55 : 775,672.05 = 553,676.55 : x
  2. Step 2: Convert to fraction form
    553,676.55/775,672.05 = 553,676.55/x
  3. Step 3: Cross multiply
    553,676.55x = 775,672.05 × 553,676.55
  4. Step 4: Simplify right side
    553,676.55x = 429,471,424,575.43
  5. Step 5: Solve for x
    x = 429,471,424,575.43/553,676.55
  6. Step 6: Final answer
    x = 775,672.05

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.