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Finding the Fourth Proportional to 1,058.04, 1,459.44 and 703.94

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Solution

The fourth proportional to 1,058.04, 1,459.44 and 703.94 is: 970.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058.04 : 1,459.44 = 703.94 : x
  2. Step 2: Convert to fraction form
    1,058.04/1,459.44 = 703.94/x
  3. Step 3: Cross multiply
    1,058.04x = 1,459.44 × 703.94
  4. Step 4: Simplify right side
    1,058.04x = 1,027,350.90
  5. Step 5: Solve for x
    x = 1,027,350.90/1,058.04
  6. Step 6: Final answer
    x = 970.99

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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.