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Finding the Fourth Proportional to 573,359.20, 859,779.60 and 257,653.60

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Solution

The fourth proportional to 573,359.20, 859,779.60 and 257,653.60 is: 386,363.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,359.20 : 859,779.60 = 257,653.60 : x
  2. Step 2: Convert to fraction form
    573,359.20/859,779.60 = 257,653.60/x
  3. Step 3: Cross multiply
    573,359.20x = 859,779.60 × 257,653.60
  4. Step 4: Simplify right side
    573,359.20x = 221,525,309,146.56
  5. Step 5: Solve for x
    x = 221,525,309,146.56/573,359.20
  6. Step 6: Final answer
    x = 386,363.92

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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.