Home / 642,019.78-962,802.49-186,516.24

Finding the Fourth Proportional to 642,019.78, 962,802.49 and 186,516.24

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Solution

The fourth proportional to 642,019.78, 962,802.49 and 186,516.24 is: 279,708.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,019.78 : 962,802.49 = 186,516.24 : x
  2. Step 2: Convert to fraction form
    642,019.78/962,802.49 = 186,516.24/x
  3. Step 3: Cross multiply
    642,019.78x = 962,802.49 × 186,516.24
  4. Step 4: Simplify right side
    642,019.78x = 179,578,295,483.43
  5. Step 5: Solve for x
    x = 179,578,295,483.43/642,019.78
  6. Step 6: Final answer
    x = 279,708.36

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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.