Home / 810,647.08-1,118,847.54-534,519.40

Finding the Fourth Proportional to 810,647.08, 1,118,847.54 and 534,519.40

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Solution

The fourth proportional to 810,647.08, 1,118,847.54 and 534,519.40 is: 737,738.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,647.08 : 1,118,847.54 = 534,519.40 : x
  2. Step 2: Convert to fraction form
    810,647.08/1,118,847.54 = 534,519.40/x
  3. Step 3: Cross multiply
    810,647.08x = 1,118,847.54 × 534,519.40
  4. Step 4: Simplify right side
    810,647.08x = 598,045,715,772.28
  5. Step 5: Solve for x
    x = 598,045,715,772.28/810,647.08
  6. Step 6: Final answer
    x = 737,738.69

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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.