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Finding the Fourth Proportional to 308,957.45, 433,473.55 and 308,957.45

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Solution

The fourth proportional to 308,957.45, 433,473.55 and 308,957.45 is: 433,473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,957.45 : 433,473.55 = 308,957.45 : x
  2. Step 2: Convert to fraction form
    308,957.45/433,473.55 = 308,957.45/x
  3. Step 3: Cross multiply
    308,957.45x = 433,473.55 × 308,957.45
  4. Step 4: Simplify right side
    308,957.45x = 133,924,882,650.45
  5. Step 5: Solve for x
    x = 133,924,882,650.45/308,957.45
  6. Step 6: Final answer
    x = 433,473.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.