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Finding the Fourth Proportional to 328,815.10, 460,807.70 and 328,815.10

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Solution

The fourth proportional to 328,815.10, 460,807.70 and 328,815.10 is: 460,807.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,815.10 : 460,807.70 = 328,815.10 : x
  2. Step 2: Convert to fraction form
    328,815.10/460,807.70 = 328,815.10/x
  3. Step 3: Cross multiply
    328,815.10x = 460,807.70 × 328,815.10
  4. Step 4: Simplify right side
    328,815.10x = 151,520,529,956.27
  5. Step 5: Solve for x
    x = 151,520,529,956.27/328,815.10
  6. Step 6: Final answer
    x = 460,807.70

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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.