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Finding the Fourth Proportional to 364,990.20, 546,563.70 and 291,262.20

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Solution

The fourth proportional to 364,990.20, 546,563.70 and 291,262.20 is: 436,157.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,990.20 : 546,563.70 = 291,262.20 : x
  2. Step 2: Convert to fraction form
    364,990.20/546,563.70 = 291,262.20/x
  3. Step 3: Cross multiply
    364,990.20x = 546,563.70 × 291,262.20
  4. Step 4: Simplify right side
    364,990.20x = 159,193,345,702.14
  5. Step 5: Solve for x
    x = 159,193,345,702.14/364,990.20
  6. Step 6: Final answer
    x = 436,157.86

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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.