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Finding the Fourth Proportional to 342,381.54, 472,551.39 and 229,400.58

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Solution

The fourth proportional to 342,381.54, 472,551.39 and 229,400.58 is: 316,616.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,381.54 : 472,551.39 = 229,400.58 : x
  2. Step 2: Convert to fraction form
    342,381.54/472,551.39 = 229,400.58/x
  3. Step 3: Cross multiply
    342,381.54x = 472,551.39 × 229,400.58
  4. Step 4: Simplify right side
    342,381.54x = 108,403,562,945.81
  5. Step 5: Solve for x
    x = 108,403,562,945.81/342,381.54
  6. Step 6: Final answer
    x = 316,616.26

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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.