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Finding the Fourth Proportional to 655,262.33, 904,323.03 and 383,312.98

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Solution

The fourth proportional to 655,262.33, 904,323.03 and 383,312.98 is: 529,007.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,262.33 : 904,323.03 = 383,312.98 : x
  2. Step 2: Convert to fraction form
    655,262.33/904,323.03 = 383,312.98/x
  3. Step 3: Cross multiply
    655,262.33x = 904,323.03 × 383,312.98
  4. Step 4: Simplify right side
    655,262.33x = 346,638,752,274.23
  5. Step 5: Solve for x
    x = 346,638,752,274.23/655,262.33
  6. Step 6: Final answer
    x = 529,007.60

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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.