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Finding the Fourth Proportional to 914.16, 1,370.52 and 529.68

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Solution

The fourth proportional to 914.16, 1,370.52 and 529.68 is: 794.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    914.16 : 1,370.52 = 529.68 : x
  2. Step 2: Convert to fraction form
    914.16/1,370.52 = 529.68/x
  3. Step 3: Cross multiply
    914.16x = 1,370.52 × 529.68
  4. Step 4: Simplify right side
    914.16x = 725,937.03
  5. Step 5: Solve for x
    x = 725,937.03/914.16
  6. Step 6: Final answer
    x = 794.10

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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.