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Finding the Fourth Proportional to 536,785.15, 740,768.46 and 291,770.48

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Solution

The fourth proportional to 536,785.15, 740,768.46 and 291,770.48 is: 402,645.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,785.15 : 740,768.46 = 291,770.48 : x
  2. Step 2: Convert to fraction form
    536,785.15/740,768.46 = 291,770.48/x
  3. Step 3: Cross multiply
    536,785.15x = 740,768.46 × 291,770.48
  4. Step 4: Simplify right side
    536,785.15x = 216,134,369,143.06
  5. Step 5: Solve for x
    x = 216,134,369,143.06/536,785.15
  6. Step 6: Final answer
    x = 402,645.95

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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.