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Finding the Fourth Proportional to 561,847,043.50, 775,343,209.26 and 310,951,923.28

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Solution

The fourth proportional to 561,847,043.50, 775,343,209.26 and 310,951,923.28 is: 429,110,493.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,847,043.50 : 775,343,209.26 = 310,951,923.28 : x
  2. Step 2: Convert to fraction form
    561,847,043.50/775,343,209.26 = 310,951,923.28/x
  3. Step 3: Cross multiply
    561,847,043.50x = 775,343,209.26 × 310,951,923.28
  4. Step 4: Simplify right side
    561,847,043.50x = 241,094,462,121,484,480
  5. Step 5: Solve for x
    x = 241,094,462,121,484,480/561,847,043.50
  6. Step 6: Final answer
    x = 429,110,493.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.