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Finding the Fourth Proportional to 353,015.23, 487,165.94 and 191,870.23

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Solution

The fourth proportional to 353,015.23, 487,165.94 and 191,870.23 is: 264,783.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,015.23 : 487,165.94 = 191,870.23 : x
  2. Step 2: Convert to fraction form
    353,015.23/487,165.94 = 191,870.23/x
  3. Step 3: Cross multiply
    353,015.23x = 487,165.94 × 191,870.23
  4. Step 4: Simplify right side
    353,015.23x = 93,472,640,955.97
  5. Step 5: Solve for x
    x = 93,472,640,955.97/353,015.23
  6. Step 6: Final answer
    x = 264,783.59

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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.