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Finding the Fourth Proportional to 706,690.78, 975,258.93 and 404,943.10

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Solution

The fourth proportional to 706,690.78, 975,258.93 and 404,943.10 is: 558,836.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,690.78 : 975,258.93 = 404,943.10 : x
  2. Step 2: Convert to fraction form
    706,690.78/975,258.93 = 404,943.10/x
  3. Step 3: Cross multiply
    706,690.78x = 975,258.93 × 404,943.10
  4. Step 4: Simplify right side
    706,690.78x = 394,924,373,497.27
  5. Step 5: Solve for x
    x = 394,924,373,497.27/706,690.78
  6. Step 6: Final answer
    x = 558,836.18

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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.