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Finding the Fourth Proportional to 382,411.22, 527,727.90 and 212,641.70

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Solution

The fourth proportional to 382,411.22, 527,727.90 and 212,641.70 is: 293,445.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,411.22 : 527,727.90 = 212,641.70 : x
  2. Step 2: Convert to fraction form
    382,411.22/527,727.90 = 212,641.70/x
  3. Step 3: Cross multiply
    382,411.22x = 527,727.90 × 212,641.70
  4. Step 4: Simplify right side
    382,411.22x = 112,216,955,154.79
  5. Step 5: Solve for x
    x = 112,216,955,154.79/382,411.22
  6. Step 6: Final answer
    x = 293,445.77

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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.