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Finding the Fourth Proportional to 2,048,603.80, 3,072,905.70 and 985,721.80

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Solution

The fourth proportional to 2,048,603.80, 3,072,905.70 and 985,721.80 is: 1,478,582.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,048,603.80 : 3,072,905.70 = 985,721.80 : x
  2. Step 2: Convert to fraction form
    2,048,603.80/3,072,905.70 = 985,721.80/x
  3. Step 3: Cross multiply
    2,048,603.80x = 3,072,905.70 × 985,721.80
  4. Step 4: Simplify right side
    2,048,603.80x = 3,029,030,137,834.26
  5. Step 5: Solve for x
    x = 3,029,030,137,834.26/2,048,603.80
  6. Step 6: Final answer
    x = 1,478,582.70

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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.