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Finding the Fourth Proportional to 356,314.32, 491,707.71 and 192,969.45

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Solution

The fourth proportional to 356,314.32, 491,707.71 and 192,969.45 is: 266,294.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,314.32 : 491,707.71 = 192,969.45 : x
  2. Step 2: Convert to fraction form
    356,314.32/491,707.71 = 192,969.45/x
  3. Step 3: Cross multiply
    356,314.32x = 491,707.71 × 192,969.45
  4. Step 4: Simplify right side
    356,314.32x = 94,884,566,359.46
  5. Step 5: Solve for x
    x = 94,884,566,359.46/356,314.32
  6. Step 6: Final answer
    x = 266,294.56

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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.