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Finding the Fourth Proportional to 583.70, 805.95 and 458.08

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Solution

The fourth proportional to 583.70, 805.95 and 458.08 is: 632.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.70 : 805.95 = 458.08 : x
  2. Step 2: Convert to fraction form
    583.70/805.95 = 458.08/x
  3. Step 3: Cross multiply
    583.70x = 805.95 × 458.08
  4. Step 4: Simplify right side
    583.70x = 369,187.56
  5. Step 5: Solve for x
    x = 369,187.56/583.70
  6. Step 6: Final answer
    x = 632.50

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