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Finding the Fourth Proportional to 1,045.48, 1,567.14 and 496.84

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Solution

The fourth proportional to 1,045.48, 1,567.14 and 496.84 is: 744.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.48 : 1,567.14 = 496.84 : x
  2. Step 2: Convert to fraction form
    1,045.48/1,567.14 = 496.84/x
  3. Step 3: Cross multiply
    1,045.48x = 1,567.14 × 496.84
  4. Step 4: Simplify right side
    1,045.48x = 778,617.84
  5. Step 5: Solve for x
    x = 778,617.84/1,045.48
  6. Step 6: Final answer
    x = 744.75

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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.