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Finding the Fourth Proportional to 579,264,771.90, 869,904,927.45 and 307,166,979.90

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Solution

The fourth proportional to 579,264,771.90, 869,904,927.45 and 307,166,979.90 is: 461,284,860.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,264,771.90 : 869,904,927.45 = 307,166,979.90 : x
  2. Step 2: Convert to fraction form
    579,264,771.90/869,904,927.45 = 307,166,979.90/x
  3. Step 3: Cross multiply
    579,264,771.90x = 869,904,927.45 × 307,166,979.90
  4. Step 4: Simplify right side
    579,264,771.90x = 267,206,069,364,945,088
  5. Step 5: Solve for x
    x = 267,206,069,364,945,088/579,264,771.90
  6. Step 6: Final answer
    x = 461,284,860.27

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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.