Home / 2,638,233.60-3,957,350.40-643,689.60

Finding the Fourth Proportional to 2,638,233.60, 3,957,350.40 and 643,689.60

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Solution

The fourth proportional to 2,638,233.60, 3,957,350.40 and 643,689.60 is: 965,534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,233.60 : 3,957,350.40 = 643,689.60 : x
  2. Step 2: Convert to fraction form
    2,638,233.60/3,957,350.40 = 643,689.60/x
  3. Step 3: Cross multiply
    2,638,233.60x = 3,957,350.40 × 643,689.60
  4. Step 4: Simplify right side
    2,638,233.60x = 2,547,305,296,035.84
  5. Step 5: Solve for x
    x = 2,547,305,296,035.84/2,638,233.60
  6. Step 6: Final answer
    x = 965,534.40

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Double scale
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Similar ratio
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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.