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Finding the Fourth Proportional to 590,976,319.60, 886,464,479.40 and 393,705,420.40

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Solution

The fourth proportional to 590,976,319.60, 886,464,479.40 and 393,705,420.40 is: 590,558,130.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,976,319.60 : 886,464,479.40 = 393,705,420.40 : x
  2. Step 2: Convert to fraction form
    590,976,319.60/886,464,479.40 = 393,705,420.40/x
  3. Step 3: Cross multiply
    590,976,319.60x = 886,464,479.40 × 393,705,420.40
  4. Step 4: Simplify right side
    590,976,319.60x = 349,005,870,531,844,096
  5. Step 5: Solve for x
    x = 349,005,870,531,844,096/590,976,319.60
  6. Step 6: Final answer
    x = 590,558,130.60

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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.