Home / 911,431.91-1,257,801.41-503,560.06

Finding the Fourth Proportional to 911,431.91, 1,257,801.41 and 503,560.06

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Solution

The fourth proportional to 911,431.91, 1,257,801.41 and 503,560.06 is: 694,926.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,431.91 : 1,257,801.41 = 503,560.06 : x
  2. Step 2: Convert to fraction form
    911,431.91/1,257,801.41 = 503,560.06/x
  3. Step 3: Cross multiply
    911,431.91x = 1,257,801.41 × 503,560.06
  4. Step 4: Simplify right side
    911,431.91x = 633,378,551,602.08
  5. Step 5: Solve for x
    x = 633,378,551,602.08/911,431.91
  6. Step 6: Final answer
    x = 694,926.90

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.