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Finding the Fourth Proportional to 442,887.10, 664,330.65 and 176,688.70

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Solution

The fourth proportional to 442,887.10, 664,330.65 and 176,688.70 is: 265,033.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,887.10 : 664,330.65 = 176,688.70 : x
  2. Step 2: Convert to fraction form
    442,887.10/664,330.65 = 176,688.70/x
  3. Step 3: Cross multiply
    442,887.10x = 664,330.65 × 176,688.70
  4. Step 4: Simplify right side
    442,887.10x = 117,379,718,918.66
  5. Step 5: Solve for x
    x = 117,379,718,918.66/442,887.10
  6. Step 6: Final answer
    x = 265,033.05

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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.