Home / 822,213.05-1,134,238.55-550,292.40

Finding the Fourth Proportional to 822,213.05, 1,134,238.55 and 550,292.40

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Solution

The fourth proportional to 822,213.05, 1,134,238.55 and 550,292.40 is: 759,125.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,213.05 : 1,134,238.55 = 550,292.40 : x
  2. Step 2: Convert to fraction form
    822,213.05/1,134,238.55 = 550,292.40/x
  3. Step 3: Cross multiply
    822,213.05x = 1,134,238.55 × 550,292.40
  4. Step 4: Simplify right side
    822,213.05x = 624,162,851,100.56
  5. Step 5: Solve for x
    x = 624,162,851,100.56/822,213.05
  6. Step 6: Final answer
    x = 759,125.45

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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.