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Finding the Fourth Proportional to 655,759.88, 982,377.85 and 402,300.24

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Solution

The fourth proportional to 655,759.88, 982,377.85 and 402,300.24 is: 602,676.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,759.88 : 982,377.85 = 402,300.24 : x
  2. Step 2: Convert to fraction form
    655,759.88/982,377.85 = 402,300.24/x
  3. Step 3: Cross multiply
    655,759.88x = 982,377.85 × 402,300.24
  4. Step 4: Simplify right side
    655,759.88x = 395,210,848,047.67
  5. Step 5: Solve for x
    x = 395,210,848,047.67/655,759.88
  6. Step 6: Final answer
    x = 602,676.17

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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.