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Finding the Fourth Proportional to 848.02, 1,170.16 and 474.99

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Solution

The fourth proportional to 848.02, 1,170.16 and 474.99 is: 655.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.02 : 1,170.16 = 474.99 : x
  2. Step 2: Convert to fraction form
    848.02/1,170.16 = 474.99/x
  3. Step 3: Cross multiply
    848.02x = 1,170.16 × 474.99
  4. Step 4: Simplify right side
    848.02x = 555,814.30
  5. Step 5: Solve for x
    x = 555,814.30/848.02
  6. Step 6: Final answer
    x = 655.43

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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.