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Finding the Fourth Proportional to 550,511.85, 769,141.95 and 550,511.85

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Solution

The fourth proportional to 550,511.85, 769,141.95 and 550,511.85 is: 769,141.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,511.85 : 769,141.95 = 550,511.85 : x
  2. Step 2: Convert to fraction form
    550,511.85/769,141.95 = 550,511.85/x
  3. Step 3: Cross multiply
    550,511.85x = 769,141.95 × 550,511.85
  4. Step 4: Simplify right side
    550,511.85x = 423,421,757,807.11
  5. Step 5: Solve for x
    x = 423,421,757,807.11/550,511.85
  6. Step 6: Final answer
    x = 769,141.95

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1.5x scale

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.