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Finding the Fourth Proportional to 655,230.93, 904,069.13 and 368,646.45

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Solution

The fourth proportional to 655,230.93, 904,069.13 and 368,646.45 is: 508,647.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,230.93 : 904,069.13 = 368,646.45 : x
  2. Step 2: Convert to fraction form
    655,230.93/904,069.13 = 368,646.45/x
  3. Step 3: Cross multiply
    655,230.93x = 904,069.13 × 368,646.45
  4. Step 4: Simplify right side
    655,230.93x = 333,281,873,485.86
  5. Step 5: Solve for x
    x = 333,281,873,485.86/655,230.93
  6. Step 6: Final answer
    x = 508,647.96

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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.