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Finding the Fourth Proportional to 304,573.48, 420,325.14 and 170,437.48

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Solution

The fourth proportional to 304,573.48, 420,325.14 and 170,437.48 is: 235,211.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,573.48 : 420,325.14 = 170,437.48 : x
  2. Step 2: Convert to fraction form
    304,573.48/420,325.14 = 170,437.48/x
  3. Step 3: Cross multiply
    304,573.48x = 420,325.14 × 170,437.48
  4. Step 4: Simplify right side
    304,573.48x = 71,639,157,642.25
  5. Step 5: Solve for x
    x = 71,639,157,642.25/304,573.48
  6. Step 6: Final answer
    x = 235,211.41

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1.5x scale

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.