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Finding the Fourth Proportional to 459,312.49, 633,903.65 and 255,383.65

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Solution

The fourth proportional to 459,312.49, 633,903.65 and 255,383.65 is: 352,458.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,312.49 : 633,903.65 = 255,383.65 : x
  2. Step 2: Convert to fraction form
    459,312.49/633,903.65 = 255,383.65/x
  3. Step 3: Cross multiply
    459,312.49x = 633,903.65 × 255,383.65
  4. Step 4: Simplify right side
    459,312.49x = 161,888,625,354.26
  5. Step 5: Solve for x
    x = 161,888,625,354.26/459,312.49
  6. Step 6: Final answer
    x = 352,458.58

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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.