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Finding the Fourth Proportional to 655,612.08, 904,772.58 and 365,223.30

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Solution

The fourth proportional to 655,612.08, 904,772.58 and 365,223.30 is: 504,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,612.08 : 904,772.58 = 365,223.30 : x
  2. Step 2: Convert to fraction form
    655,612.08/904,772.58 = 365,223.30/x
  3. Step 3: Cross multiply
    655,612.08x = 904,772.58 × 365,223.30
  4. Step 4: Simplify right side
    655,612.08x = 330,444,027,417.11
  5. Step 5: Solve for x
    x = 330,444,027,417.11/655,612.08
  6. Step 6: Final answer
    x = 504,023.70

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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.