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Finding the Fourth Proportional to 604,185.66, 906,278.42 and 287,683.02

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Solution

The fourth proportional to 604,185.66, 906,278.42 and 287,683.02 is: 431,524.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,185.66 : 906,278.42 = 287,683.02 : x
  2. Step 2: Convert to fraction form
    604,185.66/906,278.42 = 287,683.02/x
  3. Step 3: Cross multiply
    604,185.66x = 906,278.42 × 287,683.02
  4. Step 4: Simplify right side
    604,185.66x = 260,720,912,826.43
  5. Step 5: Solve for x
    x = 260,720,912,826.43/604,185.66
  6. Step 6: Final answer
    x = 431,524.50

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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.