Home / 697,196.75-962,131.53-395,390.75

Finding the Fourth Proportional to 697,196.75, 962,131.53 and 395,390.75

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Solution

The fourth proportional to 697,196.75, 962,131.53 and 395,390.75 is: 545,639.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,196.75 : 962,131.53 = 395,390.75 : x
  2. Step 2: Convert to fraction form
    697,196.75/962,131.53 = 395,390.75/x
  3. Step 3: Cross multiply
    697,196.75x = 962,131.53 × 395,390.75
  4. Step 4: Simplify right side
    697,196.75x = 380,417,907,245.35
  5. Step 5: Solve for x
    x = 380,417,907,245.35/697,196.75
  6. Step 6: Final answer
    x = 545,639.24

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Double scale
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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.