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Finding the Fourth Proportional to 1,866,777.84, 2,797,804.80 and 1,192,598.64

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Solution

The fourth proportional to 1,866,777.84, 2,797,804.80 and 1,192,598.64 is: 1,787,389.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866,777.84 : 2,797,804.80 = 1,192,598.64 : x
  2. Step 2: Convert to fraction form
    1,866,777.84/2,797,804.80 = 1,192,598.64/x
  3. Step 3: Cross multiply
    1,866,777.84x = 2,797,804.80 × 1,192,598.64
  4. Step 4: Simplify right side
    1,866,777.84x = 3,336,658,199,465.47
  5. Step 5: Solve for x
    x = 3,336,658,199,465.47/1,866,777.84
  6. Step 6: Final answer
    x = 1,787,389.01

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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.