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Finding the Fourth Proportional to 3,158,260.64, 4,736,896.08 and 1,028,330.40

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Solution

The fourth proportional to 3,158,260.64, 4,736,896.08 and 1,028,330.40 is: 1,542,334.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158,260.64 : 4,736,896.08 = 1,028,330.40 : x
  2. Step 2: Convert to fraction form
    3,158,260.64/4,736,896.08 = 1,028,330.40/x
  3. Step 3: Cross multiply
    3,158,260.64x = 4,736,896.08 × 1,028,330.40
  4. Step 4: Simplify right side
    3,158,260.64x = 4,871,094,240,704.83
  5. Step 5: Solve for x
    x = 4,871,094,240,704.83/3,158,260.64
  6. Step 6: Final answer
    x = 1,542,334.47

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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.