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Finding the Fourth Proportional to 401,668,343.48, 554,271,894 and 225,422,300

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Solution

The fourth proportional to 401,668,343.48, 554,271,894 and 225,422,300 is: 311,065,701.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,668,343.48 : 554,271,894 = 225,422,300 : x
  2. Step 2: Convert to fraction form
    401,668,343.48/554,271,894 = 225,422,300/x
  3. Step 3: Cross multiply
    401,668,343.48x = 554,271,894 × 225,422,300
  4. Step 4: Simplify right side
    401,668,343.48x = 124,945,245,170,836,192
  5. Step 5: Solve for x
    x = 124,945,245,170,836,192/401,668,343.48
  6. Step 6: Final answer
    x = 311,065,701.84

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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.