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Finding the Fourth Proportional to 297,139,637.60, 445,709,456.40 and 297,139,637.60

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Solution

The fourth proportional to 297,139,637.60, 445,709,456.40 and 297,139,637.60 is: 445,709,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,139,637.60 : 445,709,456.40 = 297,139,637.60 : x
  2. Step 2: Convert to fraction form
    297,139,637.60/445,709,456.40 = 297,139,637.60/x
  3. Step 3: Cross multiply
    297,139,637.60x = 445,709,456.40 × 297,139,637.60
  4. Step 4: Simplify right side
    297,139,637.60x = 132,437,946,349,589,008
  5. Step 5: Solve for x
    x = 132,437,946,349,589,008/297,139,637.60
  6. Step 6: Final answer
    x = 445,709,456.40

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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.