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Finding the Fourth Proportional to 400,488.64, 600,822.93 and 134,242.34

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Solution

The fourth proportional to 400,488.64, 600,822.93 and 134,242.34 is: 201,393.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,488.64 : 600,822.93 = 134,242.34 : x
  2. Step 2: Convert to fraction form
    400,488.64/600,822.93 = 134,242.34/x
  3. Step 3: Cross multiply
    400,488.64x = 600,822.93 × 134,242.34
  4. Step 4: Simplify right side
    400,488.64x = 80,655,874,211.19
  5. Step 5: Solve for x
    x = 80,655,874,211.19/400,488.64
  6. Step 6: Final answer
    x = 201,393.66

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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.