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Finding the Fourth Proportional to 586,085.22, 808,022.28 and 422,604.95

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Solution

The fourth proportional to 586,085.22, 808,022.28 and 422,604.95 is: 582,635.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,085.22 : 808,022.28 = 422,604.95 : x
  2. Step 2: Convert to fraction form
    586,085.22/808,022.28 = 422,604.95/x
  3. Step 3: Cross multiply
    586,085.22x = 808,022.28 × 422,604.95
  4. Step 4: Simplify right side
    586,085.22x = 341,474,212,782.94
  5. Step 5: Solve for x
    x = 341,474,212,782.94/586,085.22
  6. Step 6: Final answer
    x = 582,635.77

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1.5x scale

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.