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Finding the Fourth Proportional to 355,888.78, 491,125.18 and 192,544.76

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Solution

The fourth proportional to 355,888.78, 491,125.18 and 192,544.76 is: 265,711.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,888.78 : 491,125.18 = 192,544.76 : x
  2. Step 2: Convert to fraction form
    355,888.78/491,125.18 = 192,544.76/x
  3. Step 3: Cross multiply
    355,888.78x = 491,125.18 × 192,544.76
  4. Step 4: Simplify right side
    355,888.78x = 94,563,579,539.83
  5. Step 5: Solve for x
    x = 94,563,579,539.83/355,888.78
  6. Step 6: Final answer
    x = 265,711.05

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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.