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Finding the Fourth Proportional to 910,704.80, 1,364,890.80 and 699,294.80

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Solution

The fourth proportional to 910,704.80, 1,364,890.80 and 699,294.80 is: 1,048,046.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,704.80 : 1,364,890.80 = 699,294.80 : x
  2. Step 2: Convert to fraction form
    910,704.80/1,364,890.80 = 699,294.80/x
  3. Step 3: Cross multiply
    910,704.80x = 1,364,890.80 × 699,294.80
  4. Step 4: Simplify right side
    910,704.80x = 954,461,039,007.84
  5. Step 5: Solve for x
    x = 954,461,039,007.84/910,704.80
  6. Step 6: Final answer
    x = 1,048,046.57

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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.