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Finding the Fourth Proportional to 453,763.89, 626,463.72 and 403,318.71

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Solution

The fourth proportional to 453,763.89, 626,463.72 and 403,318.71 is: 556,819.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,763.89 : 626,463.72 = 403,318.71 : x
  2. Step 2: Convert to fraction form
    453,763.89/626,463.72 = 403,318.71/x
  3. Step 3: Cross multiply
    453,763.89x = 626,463.72 × 403,318.71
  4. Step 4: Simplify right side
    453,763.89x = 252,664,539,412.20
  5. Step 5: Solve for x
    x = 252,664,539,412.20/453,763.89
  6. Step 6: Final answer
    x = 556,819.41

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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.