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Finding the Fourth Proportional to 553,152.72, 829,689.96 and 315,751.44

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Solution

The fourth proportional to 553,152.72, 829,689.96 and 315,751.44 is: 473,604.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,152.72 : 829,689.96 = 315,751.44 : x
  2. Step 2: Convert to fraction form
    553,152.72/829,689.96 = 315,751.44/x
  3. Step 3: Cross multiply
    553,152.72x = 829,689.96 × 315,751.44
  4. Step 4: Simplify right side
    553,152.72x = 261,975,799,623.54
  5. Step 5: Solve for x
    x = 261,975,799,623.54/553,152.72
  6. Step 6: Final answer
    x = 473,604.83

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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.