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Finding the Fourth Proportional to 445,774.86, 615,211.74 and 254,751.21

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Solution

The fourth proportional to 445,774.86, 615,211.74 and 254,751.21 is: 351,580.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,774.86 : 615,211.74 = 254,751.21 : x
  2. Step 2: Convert to fraction form
    445,774.86/615,211.74 = 254,751.21/x
  3. Step 3: Cross multiply
    445,774.86x = 615,211.74 × 254,751.21
  4. Step 4: Simplify right side
    445,774.86x = 156,725,935,171.21
  5. Step 5: Solve for x
    x = 156,725,935,171.21/445,774.86
  6. Step 6: Final answer
    x = 351,580.92

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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.