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Finding the Fourth Proportional to 374,628.10, 561,942.15 and 372,295.30

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Solution

The fourth proportional to 374,628.10, 561,942.15 and 372,295.30 is: 558,442.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,628.10 : 561,942.15 = 372,295.30 : x
  2. Step 2: Convert to fraction form
    374,628.10/561,942.15 = 372,295.30/x
  3. Step 3: Cross multiply
    374,628.10x = 561,942.15 × 372,295.30
  4. Step 4: Simplify right side
    374,628.10x = 209,208,421,316.90
  5. Step 5: Solve for x
    x = 209,208,421,316.90/374,628.10
  6. Step 6: Final answer
    x = 558,442.95

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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.