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Finding the Fourth Proportional to 1,569.21, 2,353.83 and 473.58

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Solution

The fourth proportional to 1,569.21, 2,353.83 and 473.58 is: 710.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569.21 : 2,353.83 = 473.58 : x
  2. Step 2: Convert to fraction form
    1,569.21/2,353.83 = 473.58/x
  3. Step 3: Cross multiply
    1,569.21x = 2,353.83 × 473.58
  4. Step 4: Simplify right side
    1,569.21x = 1,114,726.81
  5. Step 5: Solve for x
    x = 1,114,726.81/1,569.21
  6. Step 6: Final answer
    x = 710.37

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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.