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Finding the Fourth Proportional to 1,133.64, 1,700.30 and 353.46

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Solution

The fourth proportional to 1,133.64, 1,700.30 and 353.46 is: 530.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.64 : 1,700.30 = 353.46 : x
  2. Step 2: Convert to fraction form
    1,133.64/1,700.30 = 353.46/x
  3. Step 3: Cross multiply
    1,133.64x = 1,700.30 × 353.46
  4. Step 4: Simplify right side
    1,133.64x = 600,979.89
  5. Step 5: Solve for x
    x = 600,979.89/1,133.64
  6. Step 6: Final answer
    x = 530.13

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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.