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Finding the Fourth Proportional to 359,124,665.70, 538,686,998.55 and 359,124,665.70

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Solution

The fourth proportional to 359,124,665.70, 538,686,998.55 and 359,124,665.70 is: 538,686,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,124,665.70 : 538,686,998.55 = 359,124,665.70 : x
  2. Step 2: Convert to fraction form
    359,124,665.70/538,686,998.55 = 359,124,665.70/x
  3. Step 3: Cross multiply
    359,124,665.70x = 538,686,998.55 × 359,124,665.70
  4. Step 4: Simplify right side
    359,124,665.70x = 193,455,788,271,205,120
  5. Step 5: Solve for x
    x = 193,455,788,271,205,120/359,124,665.70
  6. Step 6: Final answer
    x = 538,686,998.55

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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.