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Finding the Fourth Proportional to 1,793,764.40, 2,689,307.40 and 1,083,642.80

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Solution

The fourth proportional to 1,793,764.40, 2,689,307.40 and 1,083,642.80 is: 1,624,655.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,793,764.40 : 2,689,307.40 = 1,083,642.80 : x
  2. Step 2: Convert to fraction form
    1,793,764.40/2,689,307.40 = 1,083,642.80/x
  3. Step 3: Cross multiply
    1,793,764.40x = 2,689,307.40 × 1,083,642.80
  4. Step 4: Simplify right side
    1,793,764.40x = 2,914,248,600,996.72
  5. Step 5: Solve for x
    x = 2,914,248,600,996.72/1,793,764.40
  6. Step 6: Final answer
    x = 1,624,655.17

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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.