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Finding the Fourth Proportional to 1,889,700, 2,607,786 and 1,041,828

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Solution

The fourth proportional to 1,889,700, 2,607,786 and 1,041,828 is: 1,437,722.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889,700 : 2,607,786 = 1,041,828 : x
  2. Step 2: Convert to fraction form
    1,889,700/2,607,786 = 1,041,828/x
  3. Step 3: Cross multiply
    1,889,700x = 2,607,786 × 1,041,828
  4. Step 4: Simplify right side
    1,889,700x = 2,716,864,472,808
  5. Step 5: Solve for x
    x = 2,716,864,472,808/1,889,700
  6. Step 6: Final answer
    x = 1,437,722.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.