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Finding the Fourth Proportional to 294,085.68, 405,728.28 and 173,153.04

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Solution

The fourth proportional to 294,085.68, 405,728.28 and 173,153.04 is: 238,886.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,085.68 : 405,728.28 = 173,153.04 : x
  2. Step 2: Convert to fraction form
    294,085.68/405,728.28 = 173,153.04/x
  3. Step 3: Cross multiply
    294,085.68x = 405,728.28 × 173,153.04
  4. Step 4: Simplify right side
    294,085.68x = 70,253,085,095.97
  5. Step 5: Solve for x
    x = 70,253,085,095.97/294,085.68
  6. Step 6: Final answer
    x = 238,886.45

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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.