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Finding the Fourth Proportional to 303,210.48, 418,440.54 and 165,396.96

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Solution

The fourth proportional to 303,210.48, 418,440.54 and 165,396.96 is: 228,253.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,210.48 : 418,440.54 = 165,396.96 : x
  2. Step 2: Convert to fraction form
    303,210.48/418,440.54 = 165,396.96/x
  3. Step 3: Cross multiply
    303,210.48x = 418,440.54 × 165,396.96
  4. Step 4: Simplify right side
    303,210.48x = 69,208,793,256.76
  5. Step 5: Solve for x
    x = 69,208,793,256.76/303,210.48
  6. Step 6: Final answer
    x = 228,253.30

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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.