Home / 879,638.76-1,213,896.42-477,222.12

Finding the Fourth Proportional to 879,638.76, 1,213,896.42 and 477,222.12

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Solution

The fourth proportional to 879,638.76, 1,213,896.42 and 477,222.12 is: 658,563.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,638.76 : 1,213,896.42 = 477,222.12 : x
  2. Step 2: Convert to fraction form
    879,638.76/1,213,896.42 = 477,222.12/x
  3. Step 3: Cross multiply
    879,638.76x = 1,213,896.42 × 477,222.12
  4. Step 4: Simplify right side
    879,638.76x = 579,298,223,012.81
  5. Step 5: Solve for x
    x = 579,298,223,012.81/879,638.76
  6. Step 6: Final answer
    x = 658,563.78

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.