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Finding the Fourth Proportional to 477,320,726.80, 670,063,002.80 and 477,320,726.80

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Solution

The fourth proportional to 477,320,726.80, 670,063,002.80 and 477,320,726.80 is: 670,063,002.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,320,726.80 : 670,063,002.80 = 477,320,726.80 : x
  2. Step 2: Convert to fraction form
    477,320,726.80/670,063,002.80 = 477,320,726.80/x
  3. Step 3: Cross multiply
    477,320,726.80x = 670,063,002.80 × 477,320,726.80
  4. Step 4: Simplify right side
    477,320,726.80x = 319,834,959,498,286,400
  5. Step 5: Solve for x
    x = 319,834,959,498,286,400/477,320,726.80
  6. Step 6: Final answer
    x = 670,063,002.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.