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Finding the Fourth Proportional to 626,893,277.80, 940,339,916.70 and 454,004,804.20

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Solution

The fourth proportional to 626,893,277.80, 940,339,916.70 and 454,004,804.20 is: 681,007,206.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,893,277.80 : 940,339,916.70 = 454,004,804.20 : x
  2. Step 2: Convert to fraction form
    626,893,277.80/940,339,916.70 = 454,004,804.20/x
  3. Step 3: Cross multiply
    626,893,277.80x = 940,339,916.70 × 454,004,804.20
  4. Step 4: Simplify right side
    626,893,277.80x = 426,918,839,762,827,840
  5. Step 5: Solve for x
    x = 426,918,839,762,827,840/626,893,277.80
  6. Step 6: Final answer
    x = 681,007,206.30

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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.