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Finding the Fourth Proportional to 885.43, 1,222.35 and 592.24

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Solution

The fourth proportional to 885.43, 1,222.35 and 592.24 is: 817.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    885.43 : 1,222.35 = 592.24 : x
  2. Step 2: Convert to fraction form
    885.43/1,222.35 = 592.24/x
  3. Step 3: Cross multiply
    885.43x = 1,222.35 × 592.24
  4. Step 4: Simplify right side
    885.43x = 723,924.56
  5. Step 5: Solve for x
    x = 723,924.56/885.43
  6. Step 6: Final answer
    x = 817.60

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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.