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Finding the Fourth Proportional to 573,306.36, 859,664.64 and 257,492.28

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Solution

The fourth proportional to 573,306.36, 859,664.64 and 257,492.28 is: 386,105.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,306.36 : 859,664.64 = 257,492.28 : x
  2. Step 2: Convert to fraction form
    573,306.36/859,664.64 = 257,492.28/x
  3. Step 3: Cross multiply
    573,306.36x = 859,664.64 × 257,492.28
  4. Step 4: Simplify right side
    573,306.36x = 221,357,008,188.98
  5. Step 5: Solve for x
    x = 221,357,008,188.98/573,306.36
  6. Step 6: Final answer
    x = 386,105.97

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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.