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Finding the Fourth Proportional to 459,313.40, 633,873.59 and 255,385.28

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Solution

The fourth proportional to 459,313.40, 633,873.59 and 255,385.28 is: 352,443.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,313.40 : 633,873.59 = 255,385.28 : x
  2. Step 2: Convert to fraction form
    459,313.40/633,873.59 = 255,385.28/x
  3. Step 3: Cross multiply
    459,313.40x = 633,873.59 × 255,385.28
  4. Step 4: Simplify right side
    459,313.40x = 161,881,979,820.46
  5. Step 5: Solve for x
    x = 161,881,979,820.46/459,313.40
  6. Step 6: Final answer
    x = 352,443.41

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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.