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Finding the Fourth Proportional to 556,867.88, 835,167.91 and 257,060.45

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Solution

The fourth proportional to 556,867.88, 835,167.91 and 257,060.45 is: 385,528.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,867.88 : 835,167.91 = 257,060.45 : x
  2. Step 2: Convert to fraction form
    556,867.88/835,167.91 = 257,060.45/x
  3. Step 3: Cross multiply
    556,867.88x = 835,167.91 × 257,060.45
  4. Step 4: Simplify right side
    556,867.88x = 214,688,638,770.16
  5. Step 5: Solve for x
    x = 214,688,638,770.16/556,867.88
  6. Step 6: Final answer
    x = 385,528.86

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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.