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Finding the Fourth Proportional to 1,869,834.60, 2,804,751.90 and 607,789.80

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Solution

The fourth proportional to 1,869,834.60, 2,804,751.90 and 607,789.80 is: 911,684.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869,834.60 : 2,804,751.90 = 607,789.80 : x
  2. Step 2: Convert to fraction form
    1,869,834.60/2,804,751.90 = 607,789.80/x
  3. Step 3: Cross multiply
    1,869,834.60x = 2,804,751.90 × 607,789.80
  4. Step 4: Simplify right side
    1,869,834.60x = 1,704,699,596,350.62
  5. Step 5: Solve for x
    x = 1,704,699,596,350.62/1,869,834.60
  6. Step 6: Final answer
    x = 911,684.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.