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Finding the Fourth Proportional to 491,724.40, 737,586.60 and 433,987.60

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Solution

The fourth proportional to 491,724.40, 737,586.60 and 433,987.60 is: 650,981.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,724.40 : 737,586.60 = 433,987.60 : x
  2. Step 2: Convert to fraction form
    491,724.40/737,586.60 = 433,987.60/x
  3. Step 3: Cross multiply
    491,724.40x = 737,586.60 × 433,987.60
  4. Step 4: Simplify right side
    491,724.40x = 320,103,438,326.16
  5. Step 5: Solve for x
    x = 320,103,438,326.16/491,724.40
  6. Step 6: Final answer
    x = 650,981.40

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Half scale
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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.