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Finding the Fourth Proportional to 836,313.40, 1,154,211.44 and 496,783

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Solution

The fourth proportional to 836,313.40, 1,154,211.44 and 496,783 is: 685,619.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,313.40 : 1,154,211.44 = 496,783 : x
  2. Step 2: Convert to fraction form
    836,313.40/1,154,211.44 = 496,783/x
  3. Step 3: Cross multiply
    836,313.40x = 1,154,211.44 × 496,783
  4. Step 4: Simplify right side
    836,313.40x = 573,392,621,797.52
  5. Step 5: Solve for x
    x = 573,392,621,797.52/836,313.40
  6. Step 6: Final answer
    x = 685,619.32

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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.