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Finding the Fourth Proportional to 676,993.32, 934,346.48 and 418,953.37

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Solution

The fourth proportional to 676,993.32, 934,346.48 and 418,953.37 is: 578,214.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,993.32 : 934,346.48 = 418,953.37 : x
  2. Step 2: Convert to fraction form
    676,993.32/934,346.48 = 418,953.37/x
  3. Step 3: Cross multiply
    676,993.32x = 934,346.48 × 418,953.37
  4. Step 4: Simplify right side
    676,993.32x = 391,447,606,543.64
  5. Step 5: Solve for x
    x = 391,447,606,543.64/676,993.32
  6. Step 6: Final answer
    x = 578,214.87

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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.