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Finding the Fourth Proportional to 437,728, 604,064.64 and 236,524

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Solution

The fourth proportional to 437,728, 604,064.64 and 236,524 is: 326,403.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,728 : 604,064.64 = 236,524 : x
  2. Step 2: Convert to fraction form
    437,728/604,064.64 = 236,524/x
  3. Step 3: Cross multiply
    437,728x = 604,064.64 × 236,524
  4. Step 4: Simplify right side
    437,728x = 142,875,784,911.36
  5. Step 5: Solve for x
    x = 142,875,784,911.36/437,728
  6. Step 6: Final answer
    x = 326,403.12

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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.