Home / 697,451.40-1,045,917.90-276,640.20

Finding the Fourth Proportional to 697,451.40, 1,045,917.90 and 276,640.20

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Solution

The fourth proportional to 697,451.40, 1,045,917.90 and 276,640.20 is: 414,857.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,451.40 : 1,045,917.90 = 276,640.20 : x
  2. Step 2: Convert to fraction form
    697,451.40/1,045,917.90 = 276,640.20/x
  3. Step 3: Cross multiply
    697,451.40x = 1,045,917.90 × 276,640.20
  4. Step 4: Simplify right side
    697,451.40x = 289,342,937,039.58
  5. Step 5: Solve for x
    x = 289,342,937,039.58/697,451.40
  6. Step 6: Final answer
    x = 414,857.49

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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.