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Finding the Fourth Proportional to 293,497.80, 440,246.70 and 188,435.40

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Solution

The fourth proportional to 293,497.80, 440,246.70 and 188,435.40 is: 282,653.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,497.80 : 440,246.70 = 188,435.40 : x
  2. Step 2: Convert to fraction form
    293,497.80/440,246.70 = 188,435.40/x
  3. Step 3: Cross multiply
    293,497.80x = 440,246.70 × 188,435.40
  4. Step 4: Simplify right side
    293,497.80x = 82,958,063,013.18
  5. Step 5: Solve for x
    x = 82,958,063,013.18/293,497.80
  6. Step 6: Final answer
    x = 282,653.10

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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.