Home / 849,738.96-1,273,419-639,130.32

Finding the Fourth Proportional to 849,738.96, 1,273,419 and 639,130.32

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Solution

The fourth proportional to 849,738.96, 1,273,419 and 639,130.32 is: 957,800.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,738.96 : 1,273,419 = 639,130.32 : x
  2. Step 2: Convert to fraction form
    849,738.96/1,273,419 = 639,130.32/x
  3. Step 3: Cross multiply
    849,738.96x = 1,273,419 × 639,130.32
  4. Step 4: Simplify right side
    849,738.96x = 813,880,692,964.08
  5. Step 5: Solve for x
    x = 813,880,692,964.08/849,738.96
  6. Step 6: Final answer
    x = 957,800.84

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Double scale
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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.