Home / 516,203.39-712,619.69-322,718.60

Finding the Fourth Proportional to 516,203.39, 712,619.69 and 322,718.60

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Solution

The fourth proportional to 516,203.39, 712,619.69 and 322,718.60 is: 445,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,203.39 : 712,619.69 = 322,718.60 : x
  2. Step 2: Convert to fraction form
    516,203.39/712,619.69 = 322,718.60/x
  3. Step 3: Cross multiply
    516,203.39x = 712,619.69 × 322,718.60
  4. Step 4: Simplify right side
    516,203.39x = 229,975,628,689.23
  5. Step 5: Solve for x
    x = 229,975,628,689.23/516,203.39
  6. Step 6: Final answer
    x = 445,513.60

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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.