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Finding the Fourth Proportional to 330,048,007.80, 495,072,011.70 and 330,048,007.80

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Solution

The fourth proportional to 330,048,007.80, 495,072,011.70 and 330,048,007.80 is: 495,072,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,048,007.80 : 495,072,011.70 = 330,048,007.80 : x
  2. Step 2: Convert to fraction form
    330,048,007.80/495,072,011.70 = 330,048,007.80/x
  3. Step 3: Cross multiply
    330,048,007.80x = 495,072,011.70 × 330,048,007.80
  4. Step 4: Simplify right side
    330,048,007.80x = 163,397,531,179,123,296
  5. Step 5: Solve for x
    x = 163,397,531,179,123,296/330,048,007.80
  6. Step 6: Final answer
    x = 495,072,011.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.