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Finding the Fourth Proportional to 605,097,376.80, 907,646,065.20 and 519,003,934.80

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Solution

The fourth proportional to 605,097,376.80, 907,646,065.20 and 519,003,934.80 is: 778,505,902.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,097,376.80 : 907,646,065.20 = 519,003,934.80 : x
  2. Step 2: Convert to fraction form
    605,097,376.80/907,646,065.20 = 519,003,934.80/x
  3. Step 3: Cross multiply
    605,097,376.80x = 907,646,065.20 × 519,003,934.80
  4. Step 4: Simplify right side
    605,097,376.80x = 471,071,879,244,537,408
  5. Step 5: Solve for x
    x = 471,071,879,244,537,408/605,097,376.80
  6. Step 6: Final answer
    x = 778,505,902.20

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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.