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Finding the Fourth Proportional to 4,989,368.94, 7,483,987.78 and 1,202,821.44

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Solution

The fourth proportional to 4,989,368.94, 7,483,987.78 and 1,202,821.44 is: 1,804,216.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989,368.94 : 7,483,987.78 = 1,202,821.44 : x
  2. Step 2: Convert to fraction form
    4,989,368.94/7,483,987.78 = 1,202,821.44/x
  3. Step 3: Cross multiply
    4,989,368.94x = 7,483,987.78 × 1,202,821.44
  4. Step 4: Simplify right side
    4,989,368.94x = 9,001,900,958,482.00
  5. Step 5: Solve for x
    x = 9,001,900,958,482.00/4,989,368.94
  6. Step 6: Final answer
    x = 1,804,216.34

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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.