Home / 692,140.80-1,038,211.20-617,491.20

Finding the Fourth Proportional to 692,140.80, 1,038,211.20 and 617,491.20

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Solution

The fourth proportional to 692,140.80, 1,038,211.20 and 617,491.20 is: 926,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,140.80 : 1,038,211.20 = 617,491.20 : x
  2. Step 2: Convert to fraction form
    692,140.80/1,038,211.20 = 617,491.20/x
  3. Step 3: Cross multiply
    692,140.80x = 1,038,211.20 × 617,491.20
  4. Step 4: Simplify right side
    692,140.80x = 641,086,279,741.44
  5. Step 5: Solve for x
    x = 641,086,279,741.44/692,140.80
  6. Step 6: Final answer
    x = 926,236.80

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1.5x scale

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.