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Finding the Fourth Proportional to 1,259,433,156, 1,737,933,774.48 and 723,602,059.68

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Solution

The fourth proportional to 1,259,433,156, 1,737,933,774.48 and 723,602,059.68 is: 998,522,591.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,433,156 : 1,737,933,774.48 = 723,602,059.68 : x
  2. Step 2: Convert to fraction form
    1,259,433,156/1,737,933,774.48 = 723,602,059.68/x
  3. Step 3: Cross multiply
    1,259,433,156x = 1,737,933,774.48 × 723,602,059.68
  4. Step 4: Simplify right side
    1,259,433,156x = 1,257,572,458,801,164,544
  5. Step 5: Solve for x
    x = 1,257,572,458,801,164,544/1,259,433,156
  6. Step 6: Final answer
    x = 998,522,591.54

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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.