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Finding the Fourth Proportional to 672,652,980.60, 1,008,979,470.90 and 672,652,980.60

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Solution

The fourth proportional to 672,652,980.60, 1,008,979,470.90 and 672,652,980.60 is: 1,008,979,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,652,980.60 : 1,008,979,470.90 = 672,652,980.60 : x
  2. Step 2: Convert to fraction form
    672,652,980.60/1,008,979,470.90 = 672,652,980.60/x
  3. Step 3: Cross multiply
    672,652,980.60x = 1,008,979,470.90 × 672,652,980.60
  4. Step 4: Simplify right side
    672,652,980.60x = 678,693,048,465,095,936
  5. Step 5: Solve for x
    x = 678,693,048,465,095,936/672,652,980.60
  6. Step 6: Final answer
    x = 1,008,979,470.90

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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.