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Finding the Fourth Proportional to 4,662,862.80, 6,994,294.20 and 2,768,629.20

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Solution

The fourth proportional to 4,662,862.80, 6,994,294.20 and 2,768,629.20 is: 4,152,943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,662,862.80 : 6,994,294.20 = 2,768,629.20 : x
  2. Step 2: Convert to fraction form
    4,662,862.80/6,994,294.20 = 2,768,629.20/x
  3. Step 3: Cross multiply
    4,662,862.80x = 6,994,294.20 × 2,768,629.20
  4. Step 4: Simplify right side
    4,662,862.80x = 19,364,607,155,510.64
  5. Step 5: Solve for x
    x = 19,364,607,155,510.64/4,662,862.80
  6. Step 6: Final answer
    x = 4,152,943.80

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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.