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Finding the Fourth Proportional to 1,170,059.65, 1,641,626.45 and 1,170,059.65

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Solution

The fourth proportional to 1,170,059.65, 1,641,626.45 and 1,170,059.65 is: 1,641,626.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,059.65 : 1,641,626.45 = 1,170,059.65 : x
  2. Step 2: Convert to fraction form
    1,170,059.65/1,641,626.45 = 1,170,059.65/x
  3. Step 3: Cross multiply
    1,170,059.65x = 1,641,626.45 × 1,170,059.65
  4. Step 4: Simplify right side
    1,170,059.65x = 1,920,800,869,517.74
  5. Step 5: Solve for x
    x = 1,920,800,869,517.74/1,170,059.65
  6. Step 6: Final answer
    x = 1,641,626.45

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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.