Home / 813,164.12-1,122,191.08-450,554.06

Finding the Fourth Proportional to 813,164.12, 1,122,191.08 and 450,554.06

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Solution

The fourth proportional to 813,164.12, 1,122,191.08 and 450,554.06 is: 621,778.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,164.12 : 1,122,191.08 = 450,554.06 : x
  2. Step 2: Convert to fraction form
    813,164.12/1,122,191.08 = 450,554.06/x
  3. Step 3: Cross multiply
    813,164.12x = 1,122,191.08 × 450,554.06
  4. Step 4: Simplify right side
    813,164.12x = 505,607,747,189.79
  5. Step 5: Solve for x
    x = 505,607,747,189.79/813,164.12
  6. Step 6: Final answer
    x = 621,778.23

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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.