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Finding the Fourth Proportional to 446,089.68, 615,621.60 and 255,100.32

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Solution

The fourth proportional to 446,089.68, 615,621.60 and 255,100.32 is: 352,048.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,089.68 : 615,621.60 = 255,100.32 : x
  2. Step 2: Convert to fraction form
    446,089.68/615,621.60 = 255,100.32/x
  3. Step 3: Cross multiply
    446,089.68x = 615,621.60 × 255,100.32
  4. Step 4: Simplify right side
    446,089.68x = 157,045,267,158.91
  5. Step 5: Solve for x
    x = 157,045,267,158.91/446,089.68
  6. Step 6: Final answer
    x = 352,048.64

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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.