Home / 379,744.09-524,178.81-218,663.34

Finding the Fourth Proportional to 379,744.09, 524,178.81 and 218,663.34

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Solution

The fourth proportional to 379,744.09, 524,178.81 and 218,663.34 is: 301,831.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,744.09 : 524,178.81 = 218,663.34 : x
  2. Step 2: Convert to fraction form
    379,744.09/524,178.81 = 218,663.34/x
  3. Step 3: Cross multiply
    379,744.09x = 524,178.81 × 218,663.34
  4. Step 4: Simplify right side
    379,744.09x = 114,618,689,351.83
  5. Step 5: Solve for x
    x = 114,618,689,351.83/379,744.09
  6. Step 6: Final answer
    x = 301,831.40

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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.