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Finding the Fourth Proportional to 698,850,916.80, 1,044,182,604.72 and 674,410,668.48

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Solution

The fourth proportional to 698,850,916.80, 1,044,182,604.72 and 674,410,668.48 is: 1,007,665,399.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,850,916.80 : 1,044,182,604.72 = 674,410,668.48 : x
  2. Step 2: Convert to fraction form
    698,850,916.80/1,044,182,604.72 = 674,410,668.48/x
  3. Step 3: Cross multiply
    698,850,916.80x = 1,044,182,604.72 × 674,410,668.48
  4. Step 4: Simplify right side
    698,850,916.80x = 704,207,888,464,402,816
  5. Step 5: Solve for x
    x = 704,207,888,464,402,816/698,850,916.80
  6. Step 6: Final answer
    x = 1,007,665,399.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.