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Finding the Fourth Proportional to 1,457.04, 2,010.60 and 933

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Solution

The fourth proportional to 1,457.04, 2,010.60 and 933 is: 1,287.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457.04 : 2,010.60 = 933 : x
  2. Step 2: Convert to fraction form
    1,457.04/2,010.60 = 933/x
  3. Step 3: Cross multiply
    1,457.04x = 2,010.60 × 933
  4. Step 4: Simplify right side
    1,457.04x = 1,875,889.80
  5. Step 5: Solve for x
    x = 1,875,889.80/1,457.04
  6. Step 6: Final answer
    x = 1,287.47

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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.