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Finding the Fourth Proportional to 527,818.65, 728,370.22 and 286,096.03

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Solution

The fourth proportional to 527,818.65, 728,370.22 and 286,096.03 is: 394,801.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,818.65 : 728,370.22 = 286,096.03 : x
  2. Step 2: Convert to fraction form
    527,818.65/728,370.22 = 286,096.03/x
  3. Step 3: Cross multiply
    527,818.65x = 728,370.22 × 286,096.03
  4. Step 4: Simplify right side
    527,818.65x = 208,383,827,141.76
  5. Step 5: Solve for x
    x = 208,383,827,141.76/527,818.65
  6. Step 6: Final answer
    x = 394,801.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.