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Finding the Fourth Proportional to 929,159.40, 1,393,739.10 and 929,159.40

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Solution

The fourth proportional to 929,159.40, 1,393,739.10 and 929,159.40 is: 1,393,739.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,159.40 : 1,393,739.10 = 929,159.40 : x
  2. Step 2: Convert to fraction form
    929,159.40/1,393,739.10 = 929,159.40/x
  3. Step 3: Cross multiply
    929,159.40x = 1,393,739.10 × 929,159.40
  4. Step 4: Simplify right side
    929,159.40x = 1,295,005,785,912.54
  5. Step 5: Solve for x
    x = 1,295,005,785,912.54/929,159.40
  6. Step 6: Final answer
    x = 1,393,739.10

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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.