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Finding the Fourth Proportional to 706,453.78, 974,931.84 and 404,706.10

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Solution

The fourth proportional to 706,453.78, 974,931.84 and 404,706.10 is: 558,509.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,453.78 : 974,931.84 = 404,706.10 : x
  2. Step 2: Convert to fraction form
    706,453.78/974,931.84 = 404,706.10/x
  3. Step 3: Cross multiply
    706,453.78x = 974,931.84 × 404,706.10
  4. Step 4: Simplify right side
    706,453.78x = 394,560,862,732.22
  5. Step 5: Solve for x
    x = 394,560,862,732.22/706,453.78
  6. Step 6: Final answer
    x = 558,509.10

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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.