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Finding the Fourth Proportional to 626,893,281.80, 940,339,922.70 and 454,004,808.20

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Solution

The fourth proportional to 626,893,281.80, 940,339,922.70 and 454,004,808.20 is: 681,007,212.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,893,281.80 : 940,339,922.70 = 454,004,808.20 : x
  2. Step 2: Convert to fraction form
    626,893,281.80/940,339,922.70 = 454,004,808.20/x
  3. Step 3: Cross multiply
    626,893,281.80x = 940,339,922.70 × 454,004,808.20
  4. Step 4: Simplify right side
    626,893,281.80x = 426,918,846,248,216,320
  5. Step 5: Solve for x
    x = 426,918,846,248,216,320/626,893,281.80
  6. Step 6: Final answer
    x = 681,007,212.30

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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.