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Finding the Fourth Proportional to 590,978,838.60, 886,468,257.90 and 346,090,825.80

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Solution

The fourth proportional to 590,978,838.60, 886,468,257.90 and 346,090,825.80 is: 519,136,238.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,978,838.60 : 886,468,257.90 = 346,090,825.80 : x
  2. Step 2: Convert to fraction form
    590,978,838.60/886,468,257.90 = 346,090,825.80/x
  3. Step 3: Cross multiply
    590,978,838.60x = 886,468,257.90 × 346,090,825.80
  4. Step 4: Simplify right side
    590,978,838.60x = 306,798,531,422,098,368
  5. Step 5: Solve for x
    x = 306,798,531,422,098,368/590,978,838.60
  6. Step 6: Final answer
    x = 519,136,238.70

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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.