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Finding the Fourth Proportional to 495,794.97, 683,945.20 and 323,813.69

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Solution

The fourth proportional to 495,794.97, 683,945.20 and 323,813.69 is: 446,698.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,794.97 : 683,945.20 = 323,813.69 : x
  2. Step 2: Convert to fraction form
    495,794.97/683,945.20 = 323,813.69/x
  3. Step 3: Cross multiply
    495,794.97x = 683,945.20 × 323,813.69
  4. Step 4: Simplify right side
    495,794.97x = 221,470,818,969.79
  5. Step 5: Solve for x
    x = 221,470,818,969.79/495,794.97
  6. Step 6: Final answer
    x = 446,698.40

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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.