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Finding the Fourth Proportional to 673,618.52, 929,594.40 and 371,812.52

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Solution

The fourth proportional to 673,618.52, 929,594.40 and 371,812.52 is: 513,101.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,618.52 : 929,594.40 = 371,812.52 : x
  2. Step 2: Convert to fraction form
    673,618.52/929,594.40 = 371,812.52/x
  3. Step 3: Cross multiply
    673,618.52x = 929,594.40 × 371,812.52
  4. Step 4: Simplify right side
    673,618.52x = 345,634,836,441.89
  5. Step 5: Solve for x
    x = 345,634,836,441.89/673,618.52
  6. Step 6: Final answer
    x = 513,101.74

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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.