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Finding the Fourth Proportional to 438,521.60, 605,161.68 and 237,317.60

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Solution

The fourth proportional to 438,521.60, 605,161.68 and 237,317.60 is: 327,499.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,521.60 : 605,161.68 = 237,317.60 : x
  2. Step 2: Convert to fraction form
    438,521.60/605,161.68 = 237,317.60/x
  3. Step 3: Cross multiply
    438,521.60x = 605,161.68 × 237,317.60
  4. Step 4: Simplify right side
    438,521.60x = 143,615,517,509.57
  5. Step 5: Solve for x
    x = 143,615,517,509.57/438,521.60
  6. Step 6: Final answer
    x = 327,499.30

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1.5x scale

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.