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Finding the Fourth Proportional to 556,920.56, 835,247.04 and 257,113.10

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Solution

The fourth proportional to 556,920.56, 835,247.04 and 257,113.10 is: 385,607.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,920.56 : 835,247.04 = 257,113.10 : x
  2. Step 2: Convert to fraction form
    556,920.56/835,247.04 = 257,113.10/x
  3. Step 3: Cross multiply
    556,920.56x = 835,247.04 × 257,113.10
  4. Step 4: Simplify right side
    556,920.56x = 214,752,958,290.43
  5. Step 5: Solve for x
    x = 214,752,958,290.43/556,920.56
  6. Step 6: Final answer
    x = 385,607.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.