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Finding the Fourth Proportional to 614,206.94, 847,607.28 and 356,134.46

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Solution

The fourth proportional to 614,206.94, 847,607.28 and 356,134.46 is: 491,466.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,206.94 : 847,607.28 = 356,134.46 : x
  2. Step 2: Convert to fraction form
    614,206.94/847,607.28 = 356,134.46/x
  3. Step 3: Cross multiply
    614,206.94x = 847,607.28 × 356,134.46
  4. Step 4: Simplify right side
    614,206.94x = 301,862,160,954.87
  5. Step 5: Solve for x
    x = 301,862,160,954.87/614,206.94
  6. Step 6: Final answer
    x = 491,466.54

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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.