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Finding the Fourth Proportional to 1,107,400.65, 1,554,559.95 and 1,107,400.65

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Solution

The fourth proportional to 1,107,400.65, 1,554,559.95 and 1,107,400.65 is: 1,554,559.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,400.65 : 1,554,559.95 = 1,107,400.65 : x
  2. Step 2: Convert to fraction form
    1,107,400.65/1,554,559.95 = 1,107,400.65/x
  3. Step 3: Cross multiply
    1,107,400.65x = 1,554,559.95 × 1,107,400.65
  4. Step 4: Simplify right side
    1,107,400.65x = 1,721,520,699,093.97
  5. Step 5: Solve for x
    x = 1,721,520,699,093.97/1,107,400.65
  6. Step 6: Final answer
    x = 1,554,559.95

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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.