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Finding the Fourth Proportional to 353,185.65, 487,392.80 and 192,040.76

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Solution

The fourth proportional to 353,185.65, 487,392.80 and 192,040.76 is: 265,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,185.65 : 487,392.80 = 192,040.76 : x
  2. Step 2: Convert to fraction form
    353,185.65/487,392.80 = 192,040.76/x
  3. Step 3: Cross multiply
    353,185.65x = 487,392.80 × 192,040.76
  4. Step 4: Simplify right side
    353,185.65x = 93,599,283,730.53
  5. Step 5: Solve for x
    x = 93,599,283,730.53/353,185.65
  6. Step 6: Final answer
    x = 265,014.40

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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.