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Finding the Fourth Proportional to 357,146.13, 492,860.11 and 196,003.79

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Solution

The fourth proportional to 357,146.13, 492,860.11 and 196,003.79 is: 270,484.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,146.13 : 492,860.11 = 196,003.79 : x
  2. Step 2: Convert to fraction form
    357,146.13/492,860.11 = 196,003.79/x
  3. Step 3: Cross multiply
    357,146.13x = 492,860.11 × 196,003.79
  4. Step 4: Simplify right side
    357,146.13x = 96,602,446,055.50
  5. Step 5: Solve for x
    x = 96,602,446,055.50/357,146.13
  6. Step 6: Final answer
    x = 270,484.37

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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.