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Finding the Fourth Proportional to 1,700.34, 2,550.75 and 530.43

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Solution

The fourth proportional to 1,700.34, 2,550.75 and 530.43 is: 795.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,700.34 : 2,550.75 = 530.43 : x
  2. Step 2: Convert to fraction form
    1,700.34/2,550.75 = 530.43/x
  3. Step 3: Cross multiply
    1,700.34x = 2,550.75 × 530.43
  4. Step 4: Simplify right side
    1,700.34x = 1,352,994.32
  5. Step 5: Solve for x
    x = 1,352,994.32/1,700.34
  6. Step 6: Final answer
    x = 795.72

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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.