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Finding the Fourth Proportional to 611,174.02, 843,330.26 and 339,243.95

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Solution

The fourth proportional to 611,174.02, 843,330.26 and 339,243.95 is: 468,106.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,174.02 : 843,330.26 = 339,243.95 : x
  2. Step 2: Convert to fraction form
    611,174.02/843,330.26 = 339,243.95/x
  3. Step 3: Cross multiply
    611,174.02x = 843,330.26 × 339,243.95
  4. Step 4: Simplify right side
    611,174.02x = 286,094,686,860.71
  5. Step 5: Solve for x
    x = 286,094,686,860.71/611,174.02
  6. Step 6: Final answer
    x = 468,106.76

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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.