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Finding the Fourth Proportional to 548,302.32, 820,178.96 and 514,710

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Solution

The fourth proportional to 548,302.32, 820,178.96 and 514,710 is: 769,929.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,302.32 : 820,178.96 = 514,710 : x
  2. Step 2: Convert to fraction form
    548,302.32/820,178.96 = 514,710/x
  3. Step 3: Cross multiply
    548,302.32x = 820,178.96 × 514,710
  4. Step 4: Simplify right side
    548,302.32x = 422,154,312,501.60
  5. Step 5: Solve for x
    x = 422,154,312,501.60/548,302.32
  6. Step 6: Final answer
    x = 769,929.83

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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.