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Finding the Fourth Proportional to 527,328.53, 791,030.04 and 261,017.54

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Solution

The fourth proportional to 527,328.53, 791,030.04 and 261,017.54 is: 391,544.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,328.53 : 791,030.04 = 261,017.54 : x
  2. Step 2: Convert to fraction form
    527,328.53/791,030.04 = 261,017.54/x
  3. Step 3: Cross multiply
    527,328.53x = 791,030.04 × 261,017.54
  4. Step 4: Simplify right side
    527,328.53x = 206,472,714,240.47
  5. Step 5: Solve for x
    x = 206,472,714,240.47/527,328.53
  6. Step 6: Final answer
    x = 391,544.74

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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.