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Finding the Fourth Proportional to 438,564.12, 605,218.30 and 237,360.12

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Solution

The fourth proportional to 438,564.12, 605,218.30 and 237,360.12 is: 327,556.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,564.12 : 605,218.30 = 237,360.12 : x
  2. Step 2: Convert to fraction form
    438,564.12/605,218.30 = 237,360.12/x
  3. Step 3: Cross multiply
    438,564.12x = 605,218.30 × 237,360.12
  4. Step 4: Simplify right side
    438,564.12x = 143,654,688,314.20
  5. Step 5: Solve for x
    x = 143,654,688,314.20/438,564.12
  6. Step 6: Final answer
    x = 327,556.87

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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.