Home / 682,971.27-942,623.72-407,346.79

Finding the Fourth Proportional to 682,971.27, 942,623.72 and 407,346.79

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Solution

The fourth proportional to 682,971.27, 942,623.72 and 407,346.79 is: 562,212.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,971.27 : 942,623.72 = 407,346.79 : x
  2. Step 2: Convert to fraction form
    682,971.27/942,623.72 = 407,346.79/x
  3. Step 3: Cross multiply
    682,971.27x = 942,623.72 × 407,346.79
  4. Step 4: Simplify right side
    682,971.27x = 383,974,740,872.01
  5. Step 5: Solve for x
    x = 383,974,740,872.01/682,971.27
  6. Step 6: Final answer
    x = 562,212.14

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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.