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Finding the Fourth Proportional to 706,452.78, 974,930.46 and 404,705.10

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Solution

The fourth proportional to 706,452.78, 974,930.46 and 404,705.10 is: 558,507.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,452.78 : 974,930.46 = 404,705.10 : x
  2. Step 2: Convert to fraction form
    706,452.78/974,930.46 = 404,705.10/x
  3. Step 3: Cross multiply
    706,452.78x = 974,930.46 × 404,705.10
  4. Step 4: Simplify right side
    706,452.78x = 394,559,329,307.35
  5. Step 5: Solve for x
    x = 394,559,329,307.35/706,452.78
  6. Step 6: Final answer
    x = 558,507.72

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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.