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Finding the Fourth Proportional to 459,039.60, 633,457.80 and 255,103.20

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Solution

The fourth proportional to 459,039.60, 633,457.80 and 255,103.20 is: 352,033.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,039.60 : 633,457.80 = 255,103.20 : x
  2. Step 2: Convert to fraction form
    459,039.60/633,457.80 = 255,103.20/x
  3. Step 3: Cross multiply
    459,039.60x = 633,457.80 × 255,103.20
  4. Step 4: Simplify right side
    459,039.60x = 161,597,111,844.96
  5. Step 5: Solve for x
    x = 161,597,111,844.96/459,039.60
  6. Step 6: Final answer
    x = 352,033.05

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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.