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Finding the Fourth Proportional to 993,609.80, 1,490,414.70 and 595,478.60

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Solution

The fourth proportional to 993,609.80, 1,490,414.70 and 595,478.60 is: 893,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,609.80 : 1,490,414.70 = 595,478.60 : x
  2. Step 2: Convert to fraction form
    993,609.80/1,490,414.70 = 595,478.60/x
  3. Step 3: Cross multiply
    993,609.80x = 1,490,414.70 × 595,478.60
  4. Step 4: Simplify right side
    993,609.80x = 887,510,058,975.42
  5. Step 5: Solve for x
    x = 887,510,058,975.42/993,609.80
  6. Step 6: Final answer
    x = 893,217.90

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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.