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Finding the Fourth Proportional to 505,926,008.70, 758,889,013.05 and 505,926,008.70

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Solution

The fourth proportional to 505,926,008.70, 758,889,013.05 and 505,926,008.70 is: 758,889,013.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,926,008.70 : 758,889,013.05 = 505,926,008.70 : x
  2. Step 2: Convert to fraction form
    505,926,008.70/758,889,013.05 = 505,926,008.70/x
  3. Step 3: Cross multiply
    505,926,008.70x = 758,889,013.05 × 505,926,008.70
  4. Step 4: Simplify right side
    505,926,008.70x = 383,941,689,418,668,672
  5. Step 5: Solve for x
    x = 383,941,689,418,668,672/505,926,008.70
  6. Step 6: Final answer
    x = 758,889,013.05

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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.