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Finding the Fourth Proportional to 326,756,091.60, 458,606,440.80 and 326,756,091.60

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Solution

The fourth proportional to 326,756,091.60, 458,606,440.80 and 326,756,091.60 is: 458,606,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,756,091.60 : 458,606,440.80 = 326,756,091.60 : x
  2. Step 2: Convert to fraction form
    326,756,091.60/458,606,440.80 = 326,756,091.60/x
  3. Step 3: Cross multiply
    326,756,091.60x = 458,606,440.80 × 326,756,091.60
  4. Step 4: Simplify right side
    326,756,091.60x = 149,852,448,178,394,784
  5. Step 5: Solve for x
    x = 149,852,448,178,394,784/326,756,091.60
  6. Step 6: Final answer
    x = 458,606,440.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.