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Finding the Fourth Proportional to 573,572.40, 859,969.80 and 218,533.20

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Solution

The fourth proportional to 573,572.40, 859,969.80 and 218,533.20 is: 327,651.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,572.40 : 859,969.80 = 218,533.20 : x
  2. Step 2: Convert to fraction form
    573,572.40/859,969.80 = 218,533.20/x
  3. Step 3: Cross multiply
    573,572.40x = 859,969.80 × 218,533.20
  4. Step 4: Simplify right side
    573,572.40x = 187,931,952,297.36
  5. Step 5: Solve for x
    x = 187,931,952,297.36/573,572.40
  6. Step 6: Final answer
    x = 327,651.67

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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.