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Finding the Fourth Proportional to 453,907.34, 681,464.13 and 387,772.46

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Solution

The fourth proportional to 453,907.34, 681,464.13 and 387,772.46 is: 582,173.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,907.34 : 681,464.13 = 387,772.46 : x
  2. Step 2: Convert to fraction form
    453,907.34/681,464.13 = 387,772.46/x
  3. Step 3: Cross multiply
    453,907.34x = 681,464.13 × 387,772.46
  4. Step 4: Simplify right side
    453,907.34x = 264,253,022,091.86
  5. Step 5: Solve for x
    x = 264,253,022,091.86/453,907.34
  6. Step 6: Final answer
    x = 582,173.93

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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.