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Finding the Fourth Proportional to 633,751,382.40, 949,351,615.20 and 439,881,705.60

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Solution

The fourth proportional to 633,751,382.40, 949,351,615.20 and 439,881,705.60 is: 658,937,273.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,751,382.40 : 949,351,615.20 = 439,881,705.60 : x
  2. Step 2: Convert to fraction form
    633,751,382.40/949,351,615.20 = 439,881,705.60/x
  3. Step 3: Cross multiply
    633,751,382.40x = 949,351,615.20 × 439,881,705.60
  4. Step 4: Simplify right side
    633,751,382.40x = 417,602,407,708,290,944
  5. Step 5: Solve for x
    x = 417,602,407,708,290,944/633,751,382.40
  6. Step 6: Final answer
    x = 658,937,273.05

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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.