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Finding the Fourth Proportional to 716,925.76, 989,241.78 and 410,945.84

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Solution

The fourth proportional to 716,925.76, 989,241.78 and 410,945.84 is: 567,038.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,925.76 : 989,241.78 = 410,945.84 : x
  2. Step 2: Convert to fraction form
    716,925.76/989,241.78 = 410,945.84/x
  3. Step 3: Cross multiply
    716,925.76x = 989,241.78 × 410,945.84
  4. Step 4: Simplify right side
    716,925.76x = 406,524,794,245.20
  5. Step 5: Solve for x
    x = 406,524,794,245.20/716,925.76
  6. Step 6: Final answer
    x = 567,038.90

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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.