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Finding the Fourth Proportional to 590,129,999.20, 827,391,322.40 and 590,129,999.20

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Solution

The fourth proportional to 590,129,999.20, 827,391,322.40 and 590,129,999.20 is: 827,391,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,129,999.20 : 827,391,322.40 = 590,129,999.20 : x
  2. Step 2: Convert to fraction form
    590,129,999.20/827,391,322.40 = 590,129,999.20/x
  3. Step 3: Cross multiply
    590,129,999.20x = 827,391,322.40 × 590,129,999.20
  4. Step 4: Simplify right side
    590,129,999.20x = 488,268,440,425,998,976
  5. Step 5: Solve for x
    x = 488,268,440,425,998,976/590,129,999.20
  6. Step 6: Final answer
    x = 827,391,322.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.