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Finding the Fourth Proportional to 493,281.70, 680,730.54 and 266,927.20

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Solution

The fourth proportional to 493,281.70, 680,730.54 and 266,927.20 is: 368,360.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,281.70 : 680,730.54 = 266,927.20 : x
  2. Step 2: Convert to fraction form
    493,281.70/680,730.54 = 266,927.20/x
  3. Step 3: Cross multiply
    493,281.70x = 680,730.54 × 266,927.20
  4. Step 4: Simplify right side
    493,281.70x = 181,705,496,996.69
  5. Step 5: Solve for x
    x = 181,705,496,996.69/493,281.70
  6. Step 6: Final answer
    x = 368,360.51

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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.