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Finding the Fourth Proportional to 428,482.88, 591,341.76 and 237,556.16

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Solution

The fourth proportional to 428,482.88, 591,341.76 and 237,556.16 is: 327,847.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,482.88 : 591,341.76 = 237,556.16 : x
  2. Step 2: Convert to fraction form
    428,482.88/591,341.76 = 237,556.16/x
  3. Step 3: Cross multiply
    428,482.88x = 591,341.76 × 237,556.16
  4. Step 4: Simplify right side
    428,482.88x = 140,476,877,753.24
  5. Step 5: Solve for x
    x = 140,476,877,753.24/428,482.88
  6. Step 6: Final answer
    x = 327,847.12

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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.