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Finding the Fourth Proportional to 716,670.88, 1,074,967.44 and 217,996

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Solution

The fourth proportional to 716,670.88, 1,074,967.44 and 217,996 is: 326,982.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,670.88 : 1,074,967.44 = 217,996 : x
  2. Step 2: Convert to fraction form
    716,670.88/1,074,967.44 = 217,996/x
  3. Step 3: Cross multiply
    716,670.88x = 1,074,967.44 × 217,996
  4. Step 4: Simplify right side
    716,670.88x = 234,338,602,050.24
  5. Step 5: Solve for x
    x = 234,338,602,050.24/716,670.88
  6. Step 6: Final answer
    x = 326,982.17

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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.