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Finding the Fourth Proportional to 612,085.41, 916,395.80 and 467,825.90

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Solution

The fourth proportional to 612,085.41, 916,395.80 and 467,825.90 is: 700,414.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,085.41 : 916,395.80 = 467,825.90 : x
  2. Step 2: Convert to fraction form
    612,085.41/916,395.80 = 467,825.90/x
  3. Step 3: Cross multiply
    612,085.41x = 916,395.80 × 467,825.90
  4. Step 4: Simplify right side
    612,085.41x = 428,713,682,970.11
  5. Step 5: Solve for x
    x = 428,713,682,970.11/612,085.41
  6. Step 6: Final answer
    x = 700,414.80

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1.5x scale

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.