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Finding the Fourth Proportional to 328,776.60, 493,320.90 and 227,730.03

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Solution

The fourth proportional to 328,776.60, 493,320.90 and 227,730.03 is: 341,703.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,776.60 : 493,320.90 = 227,730.03 : x
  2. Step 2: Convert to fraction form
    328,776.60/493,320.90 = 227,730.03/x
  3. Step 3: Cross multiply
    328,776.60x = 493,320.90 × 227,730.03
  4. Step 4: Simplify right side
    328,776.60x = 112,343,983,356.63
  5. Step 5: Solve for x
    x = 112,343,983,356.63/328,776.60
  6. Step 6: Final answer
    x = 341,703.10

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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.