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Finding the Fourth Proportional to 459,360.21, 633,905.28 and 255,400.59

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Solution

The fourth proportional to 459,360.21, 633,905.28 and 255,400.59 is: 352,446.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,360.21 : 633,905.28 = 255,400.59 : x
  2. Step 2: Convert to fraction form
    459,360.21/633,905.28 = 255,400.59/x
  3. Step 3: Cross multiply
    459,360.21x = 633,905.28 × 255,400.59
  4. Step 4: Simplify right side
    459,360.21x = 161,899,782,516.12
  5. Step 5: Solve for x
    x = 161,899,782,516.12/459,360.21
  6. Step 6: Final answer
    x = 352,446.25

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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.