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Finding the Fourth Proportional to 655,064.58, 904,006.78 and 368,594.84

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Solution

The fourth proportional to 655,064.58, 904,006.78 and 368,594.84 is: 508,670.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,064.58 : 904,006.78 = 368,594.84 : x
  2. Step 2: Convert to fraction form
    655,064.58/904,006.78 = 368,594.84/x
  3. Step 3: Cross multiply
    655,064.58x = 904,006.78 × 368,594.84
  4. Step 4: Simplify right side
    655,064.58x = 333,212,234,433.02
  5. Step 5: Solve for x
    x = 333,212,234,433.02/655,064.58
  6. Step 6: Final answer
    x = 508,670.82

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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.