Home / 685,834.16-1,024,579.90-443,977.76

Finding the Fourth Proportional to 685,834.16, 1,024,579.90 and 443,977.76

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Solution

The fourth proportional to 685,834.16, 1,024,579.90 and 443,977.76 is: 663,266.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,834.16 : 1,024,579.90 = 443,977.76 : x
  2. Step 2: Convert to fraction form
    685,834.16/1,024,579.90 = 443,977.76/x
  3. Step 3: Cross multiply
    685,834.16x = 1,024,579.90 × 443,977.76
  4. Step 4: Simplify right side
    685,834.16x = 454,890,688,943.02
  5. Step 5: Solve for x
    x = 454,890,688,943.02/685,834.16
  6. Step 6: Final answer
    x = 663,266.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.