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Finding the Fourth Proportional to 312,595.32, 467,553.36 and 289,905.24

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Solution

The fourth proportional to 312,595.32, 467,553.36 and 289,905.24 is: 433,615.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,595.32 : 467,553.36 = 289,905.24 : x
  2. Step 2: Convert to fraction form
    312,595.32/467,553.36 = 289,905.24/x
  3. Step 3: Cross multiply
    312,595.32x = 467,553.36 × 289,905.24
  4. Step 4: Simplify right side
    312,595.32x = 135,546,169,043.61
  5. Step 5: Solve for x
    x = 135,546,169,043.61/312,595.32
  6. Step 6: Final answer
    x = 433,615.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.