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Finding the Fourth Proportional to 996,900.20, 1,495,350.30 and 996,900.20

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Solution

The fourth proportional to 996,900.20, 1,495,350.30 and 996,900.20 is: 1,495,350.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,900.20 : 1,495,350.30 = 996,900.20 : x
  2. Step 2: Convert to fraction form
    996,900.20/1,495,350.30 = 996,900.20/x
  3. Step 3: Cross multiply
    996,900.20x = 1,495,350.30 × 996,900.20
  4. Step 4: Simplify right side
    996,900.20x = 1,490,715,013,140.06
  5. Step 5: Solve for x
    x = 1,490,715,013,140.06/996,900.20
  6. Step 6: Final answer
    x = 1,495,350.30

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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.