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Finding the Fourth Proportional to 877,373,951.58, 1,210,906,003.64 and 555,531,833.30

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Solution

The fourth proportional to 877,373,951.58, 1,210,906,003.64 and 555,531,833.30 is: 766,716,211.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,373,951.58 : 1,210,906,003.64 = 555,531,833.30 : x
  2. Step 2: Convert to fraction form
    877,373,951.58/1,210,906,003.64 = 555,531,833.30/x
  3. Step 3: Cross multiply
    877,373,951.58x = 1,210,906,003.64 × 555,531,833.30
  4. Step 4: Simplify right side
    877,373,951.58x = 672,696,832,147,273,472
  5. Step 5: Solve for x
    x = 672,696,832,147,273,472/877,373,951.58
  6. Step 6: Final answer
    x = 766,716,211.41

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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.