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Finding the Fourth Proportional to 530,652,390.80, 795,978,586.20 and 162,186,630.80

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Solution

The fourth proportional to 530,652,390.80, 795,978,586.20 and 162,186,630.80 is: 243,279,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,652,390.80 : 795,978,586.20 = 162,186,630.80 : x
  2. Step 2: Convert to fraction form
    530,652,390.80/795,978,586.20 = 162,186,630.80/x
  3. Step 3: Cross multiply
    530,652,390.80x = 795,978,586.20 × 162,186,630.80
  4. Step 4: Simplify right side
    530,652,390.80x = 129,097,085,084,725,392
  5. Step 5: Solve for x
    x = 129,097,085,084,725,392/530,652,390.80
  6. Step 6: Final answer
    x = 243,279,946.20

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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.