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Finding the Fourth Proportional to 477,216.40, 658,530.66 and 262,356.34

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Solution

The fourth proportional to 477,216.40, 658,530.66 and 262,356.34 is: 362,036.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,216.40 : 658,530.66 = 262,356.34 : x
  2. Step 2: Convert to fraction form
    477,216.40/658,530.66 = 262,356.34/x
  3. Step 3: Cross multiply
    477,216.40x = 658,530.66 × 262,356.34
  4. Step 4: Simplify right side
    477,216.40x = 172,769,693,735.38
  5. Step 5: Solve for x
    x = 172,769,693,735.38/477,216.40
  6. Step 6: Final answer
    x = 362,036.37

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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.