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Finding the Fourth Proportional to 679,086.12, 937,194.66 and 437,870.82

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Solution

The fourth proportional to 679,086.12, 937,194.66 and 437,870.82 is: 604,297.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,086.12 : 937,194.66 = 437,870.82 : x
  2. Step 2: Convert to fraction form
    679,086.12/937,194.66 = 437,870.82/x
  3. Step 3: Cross multiply
    679,086.12x = 937,194.66 × 437,870.82
  4. Step 4: Simplify right side
    679,086.12x = 410,370,194,273.82
  5. Step 5: Solve for x
    x = 410,370,194,273.82/679,086.12
  6. Step 6: Final answer
    x = 604,297.72

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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.