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Finding the Fourth Proportional to 929,686,538.10, 1,394,529,807.15 and 929,686,538.10

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Solution

The fourth proportional to 929,686,538.10, 1,394,529,807.15 and 929,686,538.10 is: 1,394,529,807.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,686,538.10 : 1,394,529,807.15 = 929,686,538.10 : x
  2. Step 2: Convert to fraction form
    929,686,538.10/1,394,529,807.15 = 929,686,538.10/x
  3. Step 3: Cross multiply
    929,686,538.10x = 1,394,529,807.15 × 929,686,538.10
  4. Step 4: Simplify right side
    929,686,538.10x = 1,296,475,588,686,544,128
  5. Step 5: Solve for x
    x = 1,296,475,588,686,544,128/929,686,538.10
  6. Step 6: Final answer
    x = 1,394,529,807.15

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1.5x scale

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.