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Finding the Fourth Proportional to 4,908,661.60, 7,362,992.40 and 1,542,868.60

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Solution

The fourth proportional to 4,908,661.60, 7,362,992.40 and 1,542,868.60 is: 2,314,302.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908,661.60 : 7,362,992.40 = 1,542,868.60 : x
  2. Step 2: Convert to fraction form
    4,908,661.60/7,362,992.40 = 1,542,868.60/x
  3. Step 3: Cross multiply
    4,908,661.60x = 7,362,992.40 × 1,542,868.60
  4. Step 4: Simplify right side
    4,908,661.60x = 11,360,129,775,998.64
  5. Step 5: Solve for x
    x = 11,360,129,775,998.64/4,908,661.60
  6. Step 6: Final answer
    x = 2,314,302.90

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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.