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Finding the Fourth Proportional to 355,752,703.80, 533,629,055.70 and 252,440,573.40

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Solution

The fourth proportional to 355,752,703.80, 533,629,055.70 and 252,440,573.40 is: 378,660,860.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,752,703.80 : 533,629,055.70 = 252,440,573.40 : x
  2. Step 2: Convert to fraction form
    355,752,703.80/533,629,055.70 = 252,440,573.40/x
  3. Step 3: Cross multiply
    355,752,703.80x = 533,629,055.70 × 252,440,573.40
  4. Step 4: Simplify right side
    355,752,703.80x = 134,709,624,803,808,544
  5. Step 5: Solve for x
    x = 134,709,624,803,808,544/355,752,703.80
  6. Step 6: Final answer
    x = 378,660,860.10

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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.