Home / 820,194.36-1,131,955.74-457,744.20

Finding the Fourth Proportional to 820,194.36, 1,131,955.74 and 457,744.20

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Solution

The fourth proportional to 820,194.36, 1,131,955.74 and 457,744.20 is: 631,735.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,194.36 : 1,131,955.74 = 457,744.20 : x
  2. Step 2: Convert to fraction form
    820,194.36/1,131,955.74 = 457,744.20/x
  3. Step 3: Cross multiply
    820,194.36x = 1,131,955.74 × 457,744.20
  4. Step 4: Simplify right side
    820,194.36x = 518,146,174,641.71
  5. Step 5: Solve for x
    x = 518,146,174,641.71/820,194.36
  6. Step 6: Final answer
    x = 631,735.84

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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.