Home / 996,985.20-1,495,477.80-642,399.60

Finding the Fourth Proportional to 996,985.20, 1,495,477.80 and 642,399.60

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Solution

The fourth proportional to 996,985.20, 1,495,477.80 and 642,399.60 is: 963,599.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,985.20 : 1,495,477.80 = 642,399.60 : x
  2. Step 2: Convert to fraction form
    996,985.20/1,495,477.80 = 642,399.60/x
  3. Step 3: Cross multiply
    996,985.20x = 1,495,477.80 × 642,399.60
  4. Step 4: Simplify right side
    996,985.20x = 960,694,340,528.88
  5. Step 5: Solve for x
    x = 960,694,340,528.88/996,985.20
  6. Step 6: Final answer
    x = 963,599.40

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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.