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Finding the Fourth Proportional to 1,533.92, 2,300.56 and 494.02

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Solution

The fourth proportional to 1,533.92, 2,300.56 and 494.02 is: 740.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.92 : 2,300.56 = 494.02 : x
  2. Step 2: Convert to fraction form
    1,533.92/2,300.56 = 494.02/x
  3. Step 3: Cross multiply
    1,533.92x = 2,300.56 × 494.02
  4. Step 4: Simplify right side
    1,533.92x = 1,136,509.91
  5. Step 5: Solve for x
    x = 1,136,509.91/1,533.92
  6. Step 6: Final answer
    x = 740.92

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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.