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Finding the Fourth Proportional to 659,032.40, 988,548.60 and 185,711.60

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Solution

The fourth proportional to 659,032.40, 988,548.60 and 185,711.60 is: 278,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,032.40 : 988,548.60 = 185,711.60 : x
  2. Step 2: Convert to fraction form
    659,032.40/988,548.60 = 185,711.60/x
  3. Step 3: Cross multiply
    659,032.40x = 988,548.60 × 185,711.60
  4. Step 4: Simplify right side
    659,032.40x = 183,584,942,183.76
  5. Step 5: Solve for x
    x = 183,584,942,183.76/659,032.40
  6. Step 6: Final answer
    x = 278,567.40

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Double scale
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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.