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Finding the Fourth Proportional to 655,217.95, 904,051.16 and 368,633.47

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Solution

The fourth proportional to 655,217.95, 904,051.16 and 368,633.47 is: 508,630.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,217.95 : 904,051.16 = 368,633.47 : x
  2. Step 2: Convert to fraction form
    655,217.95/904,051.16 = 368,633.47/x
  3. Step 3: Cross multiply
    655,217.95x = 904,051.16 × 368,633.47
  4. Step 4: Simplify right side
    655,217.95x = 333,263,516,168.33
  5. Step 5: Solve for x
    x = 333,263,516,168.33/655,217.95
  6. Step 6: Final answer
    x = 508,630.02

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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.