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Finding the Fourth Proportional to 315,559.14, 435,471.24 and 186,544.11

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Solution

The fourth proportional to 315,559.14, 435,471.24 and 186,544.11 is: 257,430.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,559.14 : 435,471.24 = 186,544.11 : x
  2. Step 2: Convert to fraction form
    315,559.14/435,471.24 = 186,544.11/x
  3. Step 3: Cross multiply
    315,559.14x = 435,471.24 × 186,544.11
  4. Step 4: Simplify right side
    315,559.14x = 81,234,596,179.64
  5. Step 5: Solve for x
    x = 81,234,596,179.64/315,559.14
  6. Step 6: Final answer
    x = 257,430.65

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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.