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Finding the Fourth Proportional to 1,102,794.30, 1,655,746.65 and 682,890.30

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Solution

The fourth proportional to 1,102,794.30, 1,655,746.65 and 682,890.30 is: 1,025,298.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,794.30 : 1,655,746.65 = 682,890.30 : x
  2. Step 2: Convert to fraction form
    1,102,794.30/1,655,746.65 = 682,890.30/x
  3. Step 3: Cross multiply
    1,102,794.30x = 1,655,746.65 × 682,890.30
  4. Step 4: Simplify right side
    1,102,794.30x = 1,130,693,326,542.50
  5. Step 5: Solve for x
    x = 1,130,693,326,542.50/1,102,794.30
  6. Step 6: Final answer
    x = 1,025,298.49

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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.