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Finding the Fourth Proportional to 716,425.05, 988,674.75 and 410,495.25

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Solution

The fourth proportional to 716,425.05, 988,674.75 and 410,495.25 is: 566,488.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,425.05 : 988,674.75 = 410,495.25 : x
  2. Step 2: Convert to fraction form
    716,425.05/988,674.75 = 410,495.25/x
  3. Step 3: Cross multiply
    716,425.05x = 988,674.75 × 410,495.25
  4. Step 4: Simplify right side
    716,425.05x = 405,846,288,669.94
  5. Step 5: Solve for x
    x = 405,846,288,669.94/716,425.05
  6. Step 6: Final answer
    x = 566,488.13

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Double scale
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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.