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Finding the Fourth Proportional to 320,706,005.80, 481,059,008.70 and 240,084,437.80

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Solution

The fourth proportional to 320,706,005.80, 481,059,008.70 and 240,084,437.80 is: 360,126,656.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,706,005.80 : 481,059,008.70 = 240,084,437.80 : x
  2. Step 2: Convert to fraction form
    320,706,005.80/481,059,008.70 = 240,084,437.80/x
  3. Step 3: Cross multiply
    320,706,005.80x = 481,059,008.70 × 240,084,437.80
  4. Step 4: Simplify right side
    320,706,005.80x = 115,494,781,652,364,816
  5. Step 5: Solve for x
    x = 115,494,781,652,364,816/320,706,005.80
  6. Step 6: Final answer
    x = 360,126,656.70

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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.