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Finding the Fourth Proportional to 655,094.07, 904,522.56 and 644,631.25

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Solution

The fourth proportional to 655,094.07, 904,522.56 and 644,631.25 is: 890,076.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,094.07 : 904,522.56 = 644,631.25 : x
  2. Step 2: Convert to fraction form
    655,094.07/904,522.56 = 644,631.25/x
  3. Step 3: Cross multiply
    655,094.07x = 904,522.56 × 644,631.25
  4. Step 4: Simplify right side
    655,094.07x = 583,083,508,506
  5. Step 5: Solve for x
    x = 583,083,508,506/655,094.07
  6. Step 6: Final answer
    x = 890,076.00

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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.