Home / 693,487.84-1,040,190.24-288,577.79

Finding the Fourth Proportional to 693,487.84, 1,040,190.24 and 288,577.79

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Solution

The fourth proportional to 693,487.84, 1,040,190.24 and 288,577.79 is: 432,849.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,487.84 : 1,040,190.24 = 288,577.79 : x
  2. Step 2: Convert to fraction form
    693,487.84/1,040,190.24 = 288,577.79/x
  3. Step 3: Cross multiply
    693,487.84x = 1,040,190.24 × 288,577.79
  4. Step 4: Simplify right side
    693,487.84x = 300,175,793,994.93
  5. Step 5: Solve for x
    x = 300,175,793,994.93/693,487.84
  6. Step 6: Final answer
    x = 432,849.40

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.