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Finding the Fourth Proportional to 693,897, 957,577.86 and 375,945

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Solution

The fourth proportional to 693,897, 957,577.86 and 375,945 is: 518,804.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,897 : 957,577.86 = 375,945 : x
  2. Step 2: Convert to fraction form
    693,897/957,577.86 = 375,945/x
  3. Step 3: Cross multiply
    693,897x = 957,577.86 × 375,945
  4. Step 4: Simplify right side
    693,897x = 359,996,608,577.70
  5. Step 5: Solve for x
    x = 359,996,608,577.70/693,897
  6. Step 6: Final answer
    x = 518,804.10

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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.