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Finding the Fourth Proportional to 303,365.90, 418,728.22 and 176,082.50

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Solution

The fourth proportional to 303,365.90, 418,728.22 and 176,082.50 is: 243,042.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,365.90 : 418,728.22 = 176,082.50 : x
  2. Step 2: Convert to fraction form
    303,365.90/418,728.22 = 176,082.50/x
  3. Step 3: Cross multiply
    303,365.90x = 418,728.22 × 176,082.50
  4. Step 4: Simplify right side
    303,365.90x = 73,730,711,798.15
  5. Step 5: Solve for x
    x = 73,730,711,798.15/303,365.90
  6. Step 6: Final answer
    x = 243,042.19

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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.