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Finding the Fourth Proportional to 1,020,754, 1,408,640.52 and 568,045.36

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Solution

The fourth proportional to 1,020,754, 1,408,640.52 and 568,045.36 is: 783,902.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,754 : 1,408,640.52 = 568,045.36 : x
  2. Step 2: Convert to fraction form
    1,020,754/1,408,640.52 = 568,045.36/x
  3. Step 3: Cross multiply
    1,020,754x = 1,408,640.52 × 568,045.36
  4. Step 4: Simplify right side
    1,020,754x = 800,171,711,293.99
  5. Step 5: Solve for x
    x = 800,171,711,293.99/1,020,754
  6. Step 6: Final answer
    x = 783,902.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.