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Finding the Fourth Proportional to 673,610.70, 929,582.19 and 371,803.98

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Solution

The fourth proportional to 673,610.70, 929,582.19 and 371,803.98 is: 513,089.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,610.70 : 929,582.19 = 371,803.98 : x
  2. Step 2: Convert to fraction form
    673,610.70/929,582.19 = 371,803.98/x
  3. Step 3: Cross multiply
    673,610.70x = 929,582.19 × 371,803.98
  4. Step 4: Simplify right side
    673,610.70x = 345,622,357,979.12
  5. Step 5: Solve for x
    x = 345,622,357,979.12/673,610.70
  6. Step 6: Final answer
    x = 513,089.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.