Home / 996,989.20-1,495,483.80-642,403.60

Finding the Fourth Proportional to 996,989.20, 1,495,483.80 and 642,403.60

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Solution

The fourth proportional to 996,989.20, 1,495,483.80 and 642,403.60 is: 963,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,989.20 : 1,495,483.80 = 642,403.60 : x
  2. Step 2: Convert to fraction form
    996,989.20/1,495,483.80 = 642,403.60/x
  3. Step 3: Cross multiply
    996,989.20x = 1,495,483.80 × 642,403.60
  4. Step 4: Simplify right side
    996,989.20x = 960,704,176,861.68
  5. Step 5: Solve for x
    x = 960,704,176,861.68/996,989.20
  6. Step 6: Final answer
    x = 963,605.40

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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.