Home / 989,115.60-1,483,673.40-491,451.60

Finding the Fourth Proportional to 989,115.60, 1,483,673.40 and 491,451.60

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Solution

The fourth proportional to 989,115.60, 1,483,673.40 and 491,451.60 is: 737,177.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,115.60 : 1,483,673.40 = 491,451.60 : x
  2. Step 2: Convert to fraction form
    989,115.60/1,483,673.40 = 491,451.60/x
  3. Step 3: Cross multiply
    989,115.60x = 1,483,673.40 × 491,451.60
  4. Step 4: Simplify right side
    989,115.60x = 729,153,666,307.44
  5. Step 5: Solve for x
    x = 729,153,666,307.44/989,115.60
  6. Step 6: Final answer
    x = 737,177.40

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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.