Home / 313,717.14-432,946.25-177,777.45

Finding the Fourth Proportional to 313,717.14, 432,946.25 and 177,777.45

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Solution

The fourth proportional to 313,717.14, 432,946.25 and 177,777.45 is: 245,342.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,717.14 : 432,946.25 = 177,777.45 : x
  2. Step 2: Convert to fraction form
    313,717.14/432,946.25 = 177,777.45/x
  3. Step 3: Cross multiply
    313,717.14x = 432,946.25 × 177,777.45
  4. Step 4: Simplify right side
    313,717.14x = 76,968,079,423.18
  5. Step 5: Solve for x
    x = 76,968,079,423.18/313,717.14
  6. Step 6: Final answer
    x = 245,342.28

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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.