Home / 1,329,856.20-1,993,472.10-655,385.40

Finding the Fourth Proportional to 1,329,856.20, 1,993,472.10 and 655,385.40

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Solution

The fourth proportional to 1,329,856.20, 1,993,472.10 and 655,385.40 is: 982,431.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,856.20 : 1,993,472.10 = 655,385.40 : x
  2. Step 2: Convert to fraction form
    1,329,856.20/1,993,472.10 = 655,385.40/x
  3. Step 3: Cross multiply
    1,329,856.20x = 1,993,472.10 × 655,385.40
  4. Step 4: Simplify right side
    1,329,856.20x = 1,306,492,509,647.34
  5. Step 5: Solve for x
    x = 1,306,492,509,647.34/1,329,856.20
  6. Step 6: Final answer
    x = 982,431.42

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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.