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Finding the Fourth Proportional to 770,794,976.57, 1,063,668,559.64 and 418,363,469.51

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Solution

The fourth proportional to 770,794,976.57, 1,063,668,559.64 and 418,363,469.51 is: 577,326,114.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,794,976.57 : 1,063,668,559.64 = 418,363,469.51 : x
  2. Step 2: Convert to fraction form
    770,794,976.57/1,063,668,559.64 = 418,363,469.51/x
  3. Step 3: Cross multiply
    770,794,976.57x = 1,063,668,559.64 × 418,363,469.51
  4. Step 4: Simplify right side
    770,794,976.57x = 445,000,069,012,284,608
  5. Step 5: Solve for x
    x = 445,000,069,012,284,608/770,794,976.57
  6. Step 6: Final answer
    x = 577,326,114.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.