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Finding the Fourth Proportional to 573,105.20, 859,657.80 and 371,026.40

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Solution

The fourth proportional to 573,105.20, 859,657.80 and 371,026.40 is: 556,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,105.20 : 859,657.80 = 371,026.40 : x
  2. Step 2: Convert to fraction form
    573,105.20/859,657.80 = 371,026.40/x
  3. Step 3: Cross multiply
    573,105.20x = 859,657.80 × 371,026.40
  4. Step 4: Simplify right side
    573,105.20x = 318,955,738,765.92
  5. Step 5: Solve for x
    x = 318,955,738,765.92/573,105.20
  6. Step 6: Final answer
    x = 556,539.60

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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.