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Finding the Fourth Proportional to 1,793,978,541.80, 2,690,967,812.70 and 1,310,249,133.80

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Solution

The fourth proportional to 1,793,978,541.80, 2,690,967,812.70 and 1,310,249,133.80 is: 1,965,373,700.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,793,978,541.80 : 2,690,967,812.70 = 1,310,249,133.80 : x
  2. Step 2: Convert to fraction form
    1,793,978,541.80/2,690,967,812.70 = 1,310,249,133.80/x
  3. Step 3: Cross multiply
    1,793,978,541.80x = 2,690,967,812.70 × 1,310,249,133.80
  4. Step 4: Simplify right side
    1,793,978,541.80x = 3,525,838,245,673,855,488
  5. Step 5: Solve for x
    x = 3,525,838,245,673,855,488/1,793,978,541.80
  6. Step 6: Final answer
    x = 1,965,373,700.70

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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.