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Finding the Fourth Proportional to 253,525,276.80, 380,571,350.40 and 196,271,366.40

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Solution

The fourth proportional to 253,525,276.80, 380,571,350.40 and 196,271,366.40 is: 294,626,476.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,525,276.80 : 380,571,350.40 = 196,271,366.40 : x
  2. Step 2: Convert to fraction form
    253,525,276.80/380,571,350.40 = 196,271,366.40/x
  3. Step 3: Cross multiply
    253,525,276.80x = 380,571,350.40 × 196,271,366.40
  4. Step 4: Simplify right side
    253,525,276.80x = 74,695,258,955,701,184
  5. Step 5: Solve for x
    x = 74,695,258,955,701,184/253,525,276.80
  6. Step 6: Final answer
    x = 294,626,476.30

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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.