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Finding the Fourth Proportional to 590,978,853.60, 886,468,280.40 and 346,090,840.80

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Solution

The fourth proportional to 590,978,853.60, 886,468,280.40 and 346,090,840.80 is: 519,136,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,978,853.60 : 886,468,280.40 = 346,090,840.80 : x
  2. Step 2: Convert to fraction form
    590,978,853.60/886,468,280.40 = 346,090,840.80/x
  3. Step 3: Cross multiply
    590,978,853.60x = 886,468,280.40 × 346,090,840.80
  4. Step 4: Simplify right side
    590,978,853.60x = 306,798,552,506,166,144
  5. Step 5: Solve for x
    x = 306,798,552,506,166,144/590,978,853.60
  6. Step 6: Final answer
    x = 519,136,261.20

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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.