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Finding the Fourth Proportional to 1,117.65, 1,676.48 and 467.93

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Solution

The fourth proportional to 1,117.65, 1,676.48 and 467.93 is: 701.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.65 : 1,676.48 = 467.93 : x
  2. Step 2: Convert to fraction form
    1,117.65/1,676.48 = 467.93/x
  3. Step 3: Cross multiply
    1,117.65x = 1,676.48 × 467.93
  4. Step 4: Simplify right side
    1,117.65x = 784,479.77
  5. Step 5: Solve for x
    x = 784,479.77/1,117.65
  6. Step 6: Final answer
    x = 701.90

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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.