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Finding the Fourth Proportional to 238,557,628.80, 357,332,558.40 and 238,557,628.80

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Solution

The fourth proportional to 238,557,628.80, 357,332,558.40 and 238,557,628.80 is: 357,332,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,557,628.80 : 357,332,558.40 = 238,557,628.80 : x
  2. Step 2: Convert to fraction form
    238,557,628.80/357,332,558.40 = 238,557,628.80/x
  3. Step 3: Cross multiply
    238,557,628.80x = 357,332,558.40 × 238,557,628.80
  4. Step 4: Simplify right side
    238,557,628.80x = 85,244,407,824,941,520
  5. Step 5: Solve for x
    x = 85,244,407,824,941,520/238,557,628.80
  6. Step 6: Final answer
    x = 357,332,558.40

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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.