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Finding the Fourth Proportional to 575,295.91, 863,068.45 and 220,309.96

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Solution

The fourth proportional to 575,295.91, 863,068.45 and 220,309.96 is: 330,512.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,295.91 : 863,068.45 = 220,309.96 : x
  2. Step 2: Convert to fraction form
    575,295.91/863,068.45 = 220,309.96/x
  3. Step 3: Cross multiply
    575,295.91x = 863,068.45 × 220,309.96
  4. Step 4: Simplify right side
    575,295.91x = 190,142,575,696.76
  5. Step 5: Solve for x
    x = 190,142,575,696.76/575,295.91
  6. Step 6: Final answer
    x = 330,512.65

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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.