Home / 650,664.20-975,996.30-427,435.40

Finding the Fourth Proportional to 650,664.20, 975,996.30 and 427,435.40

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Solution

The fourth proportional to 650,664.20, 975,996.30 and 427,435.40 is: 641,153.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,664.20 : 975,996.30 = 427,435.40 : x
  2. Step 2: Convert to fraction form
    650,664.20/975,996.30 = 427,435.40/x
  3. Step 3: Cross multiply
    650,664.20x = 975,996.30 × 427,435.40
  4. Step 4: Simplify right side
    650,664.20x = 417,175,368,889.02
  5. Step 5: Solve for x
    x = 417,175,368,889.02/650,664.20
  6. Step 6: Final answer
    x = 641,153.10

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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.