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Finding the Fourth Proportional to 655,230.43, 904,068.43 and 368,645.95

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Solution

The fourth proportional to 655,230.43, 904,068.43 and 368,645.95 is: 508,647.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,230.43 : 904,068.43 = 368,645.95 : x
  2. Step 2: Convert to fraction form
    655,230.43/904,068.43 = 368,645.95/x
  3. Step 3: Cross multiply
    655,230.43x = 904,068.43 × 368,645.95
  4. Step 4: Simplify right side
    655,230.43x = 333,281,165,242.36
  5. Step 5: Solve for x
    x = 333,281,165,242.36/655,230.43
  6. Step 6: Final answer
    x = 508,647.26

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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.