Home / 1,261,178.92-1,740,463.67-688,256

Finding the Fourth Proportional to 1,261,178.92, 1,740,463.67 and 688,256

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Solution

The fourth proportional to 1,261,178.92, 1,740,463.67 and 688,256 is: 949,813.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,178.92 : 1,740,463.67 = 688,256 : x
  2. Step 2: Convert to fraction form
    1,261,178.92/1,740,463.67 = 688,256/x
  3. Step 3: Cross multiply
    1,261,178.92x = 1,740,463.67 × 688,256
  4. Step 4: Simplify right side
    1,261,178.92x = 1,197,884,563,659.52
  5. Step 5: Solve for x
    x = 1,197,884,563,659.52/1,261,178.92
  6. Step 6: Final answer
    x = 949,813.34

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Double scale
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Similar ratio
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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.