Home / 2,638,175.60-3,957,263.40-643,631.60

Finding the Fourth Proportional to 2,638,175.60, 3,957,263.40 and 643,631.60

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Solution

The fourth proportional to 2,638,175.60, 3,957,263.40 and 643,631.60 is: 965,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,175.60 : 3,957,263.40 = 643,631.60 : x
  2. Step 2: Convert to fraction form
    2,638,175.60/3,957,263.40 = 643,631.60/x
  3. Step 3: Cross multiply
    2,638,175.60x = 3,957,263.40 × 643,631.60
  4. Step 4: Simplify right side
    2,638,175.60x = 2,547,019,773,763.44
  5. Step 5: Solve for x
    x = 2,547,019,773,763.44/2,638,175.60
  6. Step 6: Final answer
    x = 965,447.40

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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.