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Finding the Fourth Proportional to 304,569.54, 420,309.28 and 168,605.75

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Solution

The fourth proportional to 304,569.54, 420,309.28 and 168,605.75 is: 232,677.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,569.54 : 420,309.28 = 168,605.75 : x
  2. Step 2: Convert to fraction form
    304,569.54/420,309.28 = 168,605.75/x
  3. Step 3: Cross multiply
    304,569.54x = 420,309.28 × 168,605.75
  4. Step 4: Simplify right side
    304,569.54x = 70,866,561,386.36
  5. Step 5: Solve for x
    x = 70,866,561,386.36/304,569.54
  6. Step 6: Final answer
    x = 232,677.77

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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.