Home / 806,881.20-1,210,321.80-245,943.60

Finding the Fourth Proportional to 806,881.20, 1,210,321.80 and 245,943.60

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Solution

The fourth proportional to 806,881.20, 1,210,321.80 and 245,943.60 is: 368,915.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,881.20 : 1,210,321.80 = 245,943.60 : x
  2. Step 2: Convert to fraction form
    806,881.20/1,210,321.80 = 245,943.60/x
  3. Step 3: Cross multiply
    806,881.20x = 1,210,321.80 × 245,943.60
  4. Step 4: Simplify right side
    806,881.20x = 297,670,900,650.48
  5. Step 5: Solve for x
    x = 297,670,900,650.48/806,881.20
  6. Step 6: Final answer
    x = 368,915.40

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Similar ratio
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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.