Home / 770,536.20-1,155,804.30-534,145.80

Finding the Fourth Proportional to 770,536.20, 1,155,804.30 and 534,145.80

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Solution

The fourth proportional to 770,536.20, 1,155,804.30 and 534,145.80 is: 801,218.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,536.20 : 1,155,804.30 = 534,145.80 : x
  2. Step 2: Convert to fraction form
    770,536.20/1,155,804.30 = 534,145.80/x
  3. Step 3: Cross multiply
    770,536.20x = 1,155,804.30 × 534,145.80
  4. Step 4: Simplify right side
    770,536.20x = 617,368,012,466.94
  5. Step 5: Solve for x
    x = 617,368,012,466.94/770,536.20
  6. Step 6: Final answer
    x = 801,218.70

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Double scale
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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.