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Finding the Fourth Proportional to 435,653,890.80, 653,465,089.80 and 176,861,806.80

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Solution

The fourth proportional to 435,653,890.80, 653,465,089.80 and 176,861,806.80 is: 265,286,317.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,653,890.80 : 653,465,089.80 = 176,861,806.80 : x
  2. Step 2: Convert to fraction form
    435,653,890.80/653,465,089.80 = 176,861,806.80/x
  3. Step 3: Cross multiply
    435,653,890.80x = 653,465,089.80 × 176,861,806.80
  4. Step 4: Simplify right side
    435,653,890.80x = 115,573,016,462,752,256
  5. Step 5: Solve for x
    x = 115,573,016,462,752,256/435,653,890.80
  6. Step 6: Final answer
    x = 265,286,317.66

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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.