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Finding the Fourth Proportional to 605,097,233.30, 907,645,849.95 and 519,003,791.30

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Solution

The fourth proportional to 605,097,233.30, 907,645,849.95 and 519,003,791.30 is: 778,505,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,097,233.30 : 907,645,849.95 = 519,003,791.30 : x
  2. Step 2: Convert to fraction form
    605,097,233.30/907,645,849.95 = 519,003,791.30/x
  3. Step 3: Cross multiply
    605,097,233.30x = 907,645,849.95 × 519,003,791.30
  4. Step 4: Simplify right side
    605,097,233.30x = 471,071,637,281,760,960
  5. Step 5: Solve for x
    x = 471,071,637,281,760,960/605,097,233.30
  6. Step 6: Final answer
    x = 778,505,686.95

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Double scale
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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.