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Finding the Fourth Proportional to 1,049.94, 1,574.74 and 530.18

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Solution

The fourth proportional to 1,049.94, 1,574.74 and 530.18 is: 795.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.94 : 1,574.74 = 530.18 : x
  2. Step 2: Convert to fraction form
    1,049.94/1,574.74 = 530.18/x
  3. Step 3: Cross multiply
    1,049.94x = 1,574.74 × 530.18
  4. Step 4: Simplify right side
    1,049.94x = 834,895.65
  5. Step 5: Solve for x
    x = 834,895.65/1,049.94
  6. Step 6: Final answer
    x = 795.18

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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.