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Finding the Fourth Proportional to 308,762.33, 426,082.85 and 170,947.39

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Solution

The fourth proportional to 308,762.33, 426,082.85 and 170,947.39 is: 235,902.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,762.33 : 426,082.85 = 170,947.39 : x
  2. Step 2: Convert to fraction form
    308,762.33/426,082.85 = 170,947.39/x
  3. Step 3: Cross multiply
    308,762.33x = 426,082.85 × 170,947.39
  4. Step 4: Simplify right side
    308,762.33x = 72,837,748,146.11
  5. Step 5: Solve for x
    x = 72,837,748,146.11/308,762.33
  6. Step 6: Final answer
    x = 235,902.31

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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.