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Finding the Fourth Proportional to 5,904,659.80, 8,856,989.70 and 1,645,485.40

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Solution

The fourth proportional to 5,904,659.80, 8,856,989.70 and 1,645,485.40 is: 2,468,228.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,904,659.80 : 8,856,989.70 = 1,645,485.40 : x
  2. Step 2: Convert to fraction form
    5,904,659.80/8,856,989.70 = 1,645,485.40/x
  3. Step 3: Cross multiply
    5,904,659.80x = 8,856,989.70 × 1,645,485.40
  4. Step 4: Simplify right side
    5,904,659.80x = 14,574,047,239,300.38
  5. Step 5: Solve for x
    x = 14,574,047,239,300.38/5,904,659.80
  6. Step 6: Final answer
    x = 2,468,228.10

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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.