Home / 977,117.40-1,465,676.10-641,194.20

Finding the Fourth Proportional to 977,117.40, 1,465,676.10 and 641,194.20

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Solution

The fourth proportional to 977,117.40, 1,465,676.10 and 641,194.20 is: 961,791.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,117.40 : 1,465,676.10 = 641,194.20 : x
  2. Step 2: Convert to fraction form
    977,117.40/1,465,676.10 = 641,194.20/x
  3. Step 3: Cross multiply
    977,117.40x = 1,465,676.10 × 641,194.20
  4. Step 4: Simplify right side
    977,117.40x = 939,783,014,398.62
  5. Step 5: Solve for x
    x = 939,783,014,398.62/977,117.40
  6. Step 6: Final answer
    x = 961,791.30

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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.