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Finding the Fourth Proportional to 1,934,493.60, 2,901,740.40 and 1,186,960.80

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Solution

The fourth proportional to 1,934,493.60, 2,901,740.40 and 1,186,960.80 is: 1,780,441.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934,493.60 : 2,901,740.40 = 1,186,960.80 : x
  2. Step 2: Convert to fraction form
    1,934,493.60/2,901,740.40 = 1,186,960.80/x
  3. Step 3: Cross multiply
    1,934,493.60x = 2,901,740.40 × 1,186,960.80
  4. Step 4: Simplify right side
    1,934,493.60x = 3,444,252,106,576.32
  5. Step 5: Solve for x
    x = 3,444,252,106,576.32/1,934,493.60
  6. Step 6: Final answer
    x = 1,780,441.20

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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.