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Finding the Fourth Proportional to 1,309,997.93, 1,964,996.90 and 363,368.64

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Solution

The fourth proportional to 1,309,997.93, 1,964,996.90 and 363,368.64 is: 545,052.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,997.93 : 1,964,996.90 = 363,368.64 : x
  2. Step 2: Convert to fraction form
    1,309,997.93/1,964,996.90 = 363,368.64/x
  3. Step 3: Cross multiply
    1,309,997.93x = 1,964,996.90 × 363,368.64
  4. Step 4: Simplify right side
    1,309,997.93x = 714,018,249,340.37
  5. Step 5: Solve for x
    x = 714,018,249,340.37/1,309,997.93
  6. Step 6: Final answer
    x = 545,052.96

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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.