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Finding the Fourth Proportional to 385,308.40, 577,573.80 and 175,097.20

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Solution

The fourth proportional to 385,308.40, 577,573.80 and 175,097.20 is: 262,469.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,308.40 : 577,573.80 = 175,097.20 : x
  2. Step 2: Convert to fraction form
    385,308.40/577,573.80 = 175,097.20/x
  3. Step 3: Cross multiply
    385,308.40x = 577,573.80 × 175,097.20
  4. Step 4: Simplify right side
    385,308.40x = 101,131,555,173.36
  5. Step 5: Solve for x
    x = 101,131,555,173.36/385,308.40
  6. Step 6: Final answer
    x = 262,469.12

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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.