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Finding the Fourth Proportional to 616,408.32, 850,660.32 and 348,136.32

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Solution

The fourth proportional to 616,408.32, 850,660.32 and 348,136.32 is: 480,437.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,408.32 : 850,660.32 = 348,136.32 : x
  2. Step 2: Convert to fraction form
    616,408.32/850,660.32 = 348,136.32/x
  3. Step 3: Cross multiply
    616,408.32x = 850,660.32 × 348,136.32
  4. Step 4: Simplify right side
    616,408.32x = 296,145,753,374.82
  5. Step 5: Solve for x
    x = 296,145,753,374.82/616,408.32
  6. Step 6: Final answer
    x = 480,437.63

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1.5x scale

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.