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Finding the Fourth Proportional to 1,565.55, 2,348.03 and 525.42

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Solution

The fourth proportional to 1,565.55, 2,348.03 and 525.42 is: 788.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565.55 : 2,348.03 = 525.42 : x
  2. Step 2: Convert to fraction form
    1,565.55/2,348.03 = 525.42/x
  3. Step 3: Cross multiply
    1,565.55x = 2,348.03 × 525.42
  4. Step 4: Simplify right side
    1,565.55x = 1,233,703.24
  5. Step 5: Solve for x
    x = 1,233,703.24/1,565.55
  6. Step 6: Final answer
    x = 788.03

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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.