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Finding the Fourth Proportional to 1,017.07, 1,525.70 and 469.41

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Solution

The fourth proportional to 1,017.07, 1,525.70 and 469.41 is: 704.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017.07 : 1,525.70 = 469.41 : x
  2. Step 2: Convert to fraction form
    1,017.07/1,525.70 = 469.41/x
  3. Step 3: Cross multiply
    1,017.07x = 1,525.70 × 469.41
  4. Step 4: Simplify right side
    1,017.07x = 716,173.41
  5. Step 5: Solve for x
    x = 716,173.41/1,017.07
  6. Step 6: Final answer
    x = 704.16

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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.