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Finding the Fourth Proportional to 706,173.36, 1,058,927.28 and 256,578

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Solution

The fourth proportional to 706,173.36, 1,058,927.28 and 256,578 is: 384,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,173.36 : 1,058,927.28 = 256,578 : x
  2. Step 2: Convert to fraction form
    706,173.36/1,058,927.28 = 256,578/x
  3. Step 3: Cross multiply
    706,173.36x = 1,058,927.28 × 256,578
  4. Step 4: Simplify right side
    706,173.36x = 271,697,443,647.84
  5. Step 5: Solve for x
    x = 271,697,443,647.84/706,173.36
  6. Step 6: Final answer
    x = 384,746.10

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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.