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Finding the Fourth Proportional to 298,981,726.80, 417,554,050.80 and 298,981,726.80

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Solution

The fourth proportional to 298,981,726.80, 417,554,050.80 and 298,981,726.80 is: 417,554,050.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,981,726.80 : 417,554,050.80 = 298,981,726.80 : x
  2. Step 2: Convert to fraction form
    298,981,726.80/417,554,050.80 = 298,981,726.80/x
  3. Step 3: Cross multiply
    298,981,726.80x = 417,554,050.80 × 298,981,726.80
  4. Step 4: Simplify right side
    298,981,726.80x = 124,841,031,140,518,928
  5. Step 5: Solve for x
    x = 124,841,031,140,518,928/298,981,726.80
  6. Step 6: Final answer
    x = 417,554,050.80

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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.