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Finding the Fourth Proportional to 358,486.68, 494,722.80 and 195,154.12

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Solution

The fourth proportional to 358,486.68, 494,722.80 and 195,154.12 is: 269,318.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,486.68 : 494,722.80 = 195,154.12 : x
  2. Step 2: Convert to fraction form
    358,486.68/494,722.80 = 195,154.12/x
  3. Step 3: Cross multiply
    358,486.68x = 494,722.80 × 195,154.12
  4. Step 4: Simplify right side
    358,486.68x = 96,547,192,677.94
  5. Step 5: Solve for x
    x = 96,547,192,677.94/358,486.68
  6. Step 6: Final answer
    x = 269,318.77

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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.