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Finding the Fourth Proportional to 556,662,840.85, 835,101,656.65 and 211,589,489.82

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Solution

The fourth proportional to 556,662,840.85, 835,101,656.65 and 211,589,489.82 is: 317,425,056.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,662,840.85 : 835,101,656.65 = 211,589,489.82 : x
  2. Step 2: Convert to fraction form
    556,662,840.85/835,101,656.65 = 211,589,489.82/x
  3. Step 3: Cross multiply
    556,662,840.85x = 835,101,656.65 × 211,589,489.82
  4. Step 4: Simplify right side
    556,662,840.85x = 176,698,733,480,615,168
  5. Step 5: Solve for x
    x = 176,698,733,480,615,168/556,662,840.85
  6. Step 6: Final answer
    x = 317,425,056.09

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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.