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Finding the Fourth Proportional to 910,236.66, 1,256,124 and 502,335.54

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Solution

The fourth proportional to 910,236.66, 1,256,124 and 502,335.54 is: 693,221.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,236.66 : 1,256,124 = 502,335.54 : x
  2. Step 2: Convert to fraction form
    910,236.66/1,256,124 = 502,335.54/x
  3. Step 3: Cross multiply
    910,236.66x = 1,256,124 × 502,335.54
  4. Step 4: Simplify right side
    910,236.66x = 630,995,727,846.96
  5. Step 5: Solve for x
    x = 630,995,727,846.96/910,236.66
  6. Step 6: Final answer
    x = 693,221.62

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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.