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Finding the Fourth Proportional to 590,478.76, 885,721.50 and 147,246.76

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Solution

The fourth proportional to 590,478.76, 885,721.50 and 147,246.76 is: 220,870.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,478.76 : 885,721.50 = 147,246.76 : x
  2. Step 2: Convert to fraction form
    590,478.76/885,721.50 = 147,246.76/x
  3. Step 3: Cross multiply
    590,478.76x = 885,721.50 × 147,246.76
  4. Step 4: Simplify right side
    590,478.76x = 130,419,621,137.34
  5. Step 5: Solve for x
    x = 130,419,621,137.34/590,478.76
  6. Step 6: Final answer
    x = 220,870.98

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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.