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Finding the Fourth Proportional to 618,815.16, 928,287.54 and 263,866.68

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Solution

The fourth proportional to 618,815.16, 928,287.54 and 263,866.68 is: 395,827.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,815.16 : 928,287.54 = 263,866.68 : x
  2. Step 2: Convert to fraction form
    618,815.16/928,287.54 = 263,866.68/x
  3. Step 3: Cross multiply
    618,815.16x = 928,287.54 × 263,866.68
  4. Step 4: Simplify right side
    618,815.16x = 244,944,151,265.17
  5. Step 5: Solve for x
    x = 244,944,151,265.17/618,815.16
  6. Step 6: Final answer
    x = 395,827.65

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1.5x scale

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.