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Finding the Fourth Proportional to 1,782,005.10, 2,671,826.85 and 983,669.10

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Solution

The fourth proportional to 1,782,005.10, 2,671,826.85 and 983,669.10 is: 1,474,851.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,782,005.10 : 2,671,826.85 = 983,669.10 : x
  2. Step 2: Convert to fraction form
    1,782,005.10/2,671,826.85 = 983,669.10/x
  3. Step 3: Cross multiply
    1,782,005.10x = 2,671,826.85 × 983,669.10
  4. Step 4: Simplify right side
    1,782,005.10x = 2,628,193,512,895.34
  5. Step 5: Solve for x
    x = 2,628,193,512,895.34/1,782,005.10
  6. Step 6: Final answer
    x = 1,474,851.85

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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.