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Finding the Fourth Proportional to 607,043.80, 910,565.70 and 213,059.80

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Solution

The fourth proportional to 607,043.80, 910,565.70 and 213,059.80 is: 319,589.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,043.80 : 910,565.70 = 213,059.80 : x
  2. Step 2: Convert to fraction form
    607,043.80/910,565.70 = 213,059.80/x
  3. Step 3: Cross multiply
    607,043.80x = 910,565.70 × 213,059.80
  4. Step 4: Simplify right side
    607,043.80x = 194,004,945,928.86
  5. Step 5: Solve for x
    x = 194,004,945,928.86/607,043.80
  6. Step 6: Final answer
    x = 319,589.70

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Similar ratio
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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.