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Finding the Fourth Proportional to 616,481,678.18, 850,868,309.04 and 365,725,255.88

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Solution

The fourth proportional to 616,481,678.18, 850,868,309.04 and 365,725,255.88 is: 504,774,174.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,481,678.18 : 850,868,309.04 = 365,725,255.88 : x
  2. Step 2: Convert to fraction form
    616,481,678.18/850,868,309.04 = 365,725,255.88/x
  3. Step 3: Cross multiply
    616,481,678.18x = 850,868,309.04 × 365,725,255.88
  4. Step 4: Simplify right side
    616,481,678.18x = 311,184,030,043,836,928
  5. Step 5: Solve for x
    x = 311,184,030,043,836,928/616,481,678.18
  6. Step 6: Final answer
    x = 504,774,174.25

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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.