Home / 816,638.26-1,126,795.08-477,040.90

Finding the Fourth Proportional to 816,638.26, 1,126,795.08 and 477,040.90

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Solution

The fourth proportional to 816,638.26, 1,126,795.08 and 477,040.90 is: 658,219.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,638.26 : 1,126,795.08 = 477,040.90 : x
  2. Step 2: Convert to fraction form
    816,638.26/1,126,795.08 = 477,040.90/x
  3. Step 3: Cross multiply
    816,638.26x = 1,126,795.08 × 477,040.90
  4. Step 4: Simplify right side
    816,638.26x = 537,527,339,078.77
  5. Step 5: Solve for x
    x = 537,527,339,078.77/816,638.26
  6. Step 6: Final answer
    x = 658,219.64

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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.