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Finding the Fourth Proportional to 624,190.65, 934,701.98 and 343,390.65

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Solution

The fourth proportional to 624,190.65, 934,701.98 and 343,390.65 is: 514,214.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,190.65 : 934,701.98 = 343,390.65 : x
  2. Step 2: Convert to fraction form
    624,190.65/934,701.98 = 343,390.65/x
  3. Step 3: Cross multiply
    624,190.65x = 934,701.98 × 343,390.65
  4. Step 4: Simplify right side
    624,190.65x = 320,967,918,751.53
  5. Step 5: Solve for x
    x = 320,967,918,751.53/624,190.65
  6. Step 6: Final answer
    x = 514,214.56

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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.