Home / 810,274.32-1,118,173.98-447,698.28

Finding the Fourth Proportional to 810,274.32, 1,118,173.98 and 447,698.28

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Solution

The fourth proportional to 810,274.32, 1,118,173.98 and 447,698.28 is: 617,821.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,274.32 : 1,118,173.98 = 447,698.28 : x
  2. Step 2: Convert to fraction form
    810,274.32/1,118,173.98 = 447,698.28/x
  3. Step 3: Cross multiply
    810,274.32x = 1,118,173.98 × 447,698.28
  4. Step 4: Simplify right side
    810,274.32x = 500,604,567,586.75
  5. Step 5: Solve for x
    x = 500,604,567,586.75/810,274.32
  6. Step 6: Final answer
    x = 617,821.09

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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.