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Finding the Fourth Proportional to 926,908.90, 1,299,538.70 and 926,908.90

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Solution

The fourth proportional to 926,908.90, 1,299,538.70 and 926,908.90 is: 1,299,538.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,908.90 : 1,299,538.70 = 926,908.90 : x
  2. Step 2: Convert to fraction form
    926,908.90/1,299,538.70 = 926,908.90/x
  3. Step 3: Cross multiply
    926,908.90x = 1,299,538.70 × 926,908.90
  4. Step 4: Simplify right side
    926,908.90x = 1,204,553,986,924.43
  5. Step 5: Solve for x
    x = 1,204,553,986,924.43/926,908.90
  6. Step 6: Final answer
    x = 1,299,538.70

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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.