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Finding the Fourth Proportional to 1,056.24, 1,457.64 and 590.48

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Solution

The fourth proportional to 1,056.24, 1,457.64 and 590.48 is: 814.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056.24 : 1,457.64 = 590.48 : x
  2. Step 2: Convert to fraction form
    1,056.24/1,457.64 = 590.48/x
  3. Step 3: Cross multiply
    1,056.24x = 1,457.64 × 590.48
  4. Step 4: Simplify right side
    1,056.24x = 860,707.27
  5. Step 5: Solve for x
    x = 860,707.27/1,056.24
  6. Step 6: Final answer
    x = 814.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.