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Finding the Fourth Proportional to 1,797,742.30, 2,480,869.63 and 981,946.50

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Solution

The fourth proportional to 1,797,742.30, 2,480,869.63 and 981,946.50 is: 1,355,078.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,797,742.30 : 2,480,869.63 = 981,946.50 : x
  2. Step 2: Convert to fraction form
    1,797,742.30/2,480,869.63 = 981,946.50/x
  3. Step 3: Cross multiply
    1,797,742.30x = 2,480,869.63 × 981,946.50
  4. Step 4: Simplify right side
    1,797,742.30x = 2,436,081,245,225.06
  5. Step 5: Solve for x
    x = 2,436,081,245,225.06/1,797,742.30
  6. Step 6: Final answer
    x = 1,355,078.12

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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.