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Finding the Fourth Proportional to 612,068.66, 915,284.43 and 582,208.82

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Solution

The fourth proportional to 612,068.66, 915,284.43 and 582,208.82 is: 870,632.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,068.66 : 915,284.43 = 582,208.82 : x
  2. Step 2: Convert to fraction form
    612,068.66/915,284.43 = 582,208.82/x
  3. Step 3: Cross multiply
    612,068.66x = 915,284.43 × 582,208.82
  4. Step 4: Simplify right side
    612,068.66x = 532,886,667,954.67
  5. Step 5: Solve for x
    x = 532,886,667,954.67/612,068.66
  6. Step 6: Final answer
    x = 870,632.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.