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Finding the Fourth Proportional to 326,610,001.80, 489,915,002.70 and 326,610,001.80

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Solution

The fourth proportional to 326,610,001.80, 489,915,002.70 and 326,610,001.80 is: 489,915,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,610,001.80 : 489,915,002.70 = 326,610,001.80 : x
  2. Step 2: Convert to fraction form
    326,610,001.80/489,915,002.70 = 326,610,001.80/x
  3. Step 3: Cross multiply
    326,610,001.80x = 489,915,002.70 × 326,610,001.80
  4. Step 4: Simplify right side
    326,610,001.80x = 160,011,139,913,694,016
  5. Step 5: Solve for x
    x = 160,011,139,913,694,016/326,610,001.80
  6. Step 6: Final answer
    x = 489,915,002.70

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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.