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Finding the Fourth Proportional to 543,176.40, 814,812 and 223,347.72

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Solution

The fourth proportional to 543,176.40, 814,812 and 223,347.72 is: 335,041.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,176.40 : 814,812 = 223,347.72 : x
  2. Step 2: Convert to fraction form
    543,176.40/814,812 = 223,347.72/x
  3. Step 3: Cross multiply
    543,176.40x = 814,812 × 223,347.72
  4. Step 4: Simplify right side
    543,176.40x = 181,986,402,428.64
  5. Step 5: Solve for x
    x = 181,986,402,428.64/543,176.40
  6. Step 6: Final answer
    x = 335,041.07

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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.