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Finding the Fourth Proportional to 445,763.80, 615,004.44 and 254,641.88

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Solution

The fourth proportional to 445,763.80, 615,004.44 and 254,641.88 is: 351,320.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,763.80 : 615,004.44 = 254,641.88 : x
  2. Step 2: Convert to fraction form
    445,763.80/615,004.44 = 254,641.88/x
  3. Step 3: Cross multiply
    445,763.80x = 615,004.44 × 254,641.88
  4. Step 4: Simplify right side
    445,763.80x = 156,605,886,809.95
  5. Step 5: Solve for x
    x = 156,605,886,809.95/445,763.80
  6. Step 6: Final answer
    x = 351,320.33

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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.