Home / 1,328,543.10-1,991,453.85-653,586.30

Finding the Fourth Proportional to 1,328,543.10, 1,991,453.85 and 653,586.30

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Solution

The fourth proportional to 1,328,543.10, 1,991,453.85 and 653,586.30 is: 979,709.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,543.10 : 1,991,453.85 = 653,586.30 : x
  2. Step 2: Convert to fraction form
    1,328,543.10/1,991,453.85 = 653,586.30/x
  3. Step 3: Cross multiply
    1,328,543.10x = 1,991,453.85 × 653,586.30
  4. Step 4: Simplify right side
    1,328,543.10x = 1,301,586,953,442.26
  5. Step 5: Solve for x
    x = 1,301,586,953,442.26/1,328,543.10
  6. Step 6: Final answer
    x = 979,709.99

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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.