Home / 665,573.46-919,249.02-447,403.32

Finding the Fourth Proportional to 665,573.46, 919,249.02 and 447,403.32

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Solution

The fourth proportional to 665,573.46, 919,249.02 and 447,403.32 is: 617,925.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,573.46 : 919,249.02 = 447,403.32 : x
  2. Step 2: Convert to fraction form
    665,573.46/919,249.02 = 447,403.32/x
  3. Step 3: Cross multiply
    665,573.46x = 919,249.02 × 447,403.32
  4. Step 4: Simplify right side
    665,573.46x = 411,275,063,454.75
  5. Step 5: Solve for x
    x = 411,275,063,454.75/665,573.46
  6. Step 6: Final answer
    x = 617,925.88

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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.