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Finding the Fourth Proportional to 573,028.76, 859,916.12 and 218,045.72

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Solution

The fourth proportional to 573,028.76, 859,916.12 and 218,045.72 is: 327,210.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,028.76 : 859,916.12 = 218,045.72 : x
  2. Step 2: Convert to fraction form
    573,028.76/859,916.12 = 218,045.72/x
  3. Step 3: Cross multiply
    573,028.76x = 859,916.12 × 218,045.72
  4. Step 4: Simplify right side
    573,028.76x = 187,501,029,525.01
  5. Step 5: Solve for x
    x = 187,501,029,525.01/573,028.76
  6. Step 6: Final answer
    x = 327,210.50

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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.