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Finding the Fourth Proportional to 428,590.95, 591,469.89 and 237,592.95

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Solution

The fourth proportional to 428,590.95, 591,469.89 and 237,592.95 is: 327,886.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,590.95 : 591,469.89 = 237,592.95 : x
  2. Step 2: Convert to fraction form
    428,590.95/591,469.89 = 237,592.95/x
  3. Step 3: Cross multiply
    428,590.95x = 591,469.89 × 237,592.95
  4. Step 4: Simplify right side
    428,590.95x = 140,529,076,001.28
  5. Step 5: Solve for x
    x = 140,529,076,001.28/428,590.95
  6. Step 6: Final answer
    x = 327,886.24

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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.