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Finding the Fourth Proportional to 604,383.66, 906,607.86 and 155,108.40

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Solution

The fourth proportional to 604,383.66, 906,607.86 and 155,108.40 is: 232,670.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,383.66 : 906,607.86 = 155,108.40 : x
  2. Step 2: Convert to fraction form
    604,383.66/906,607.86 = 155,108.40/x
  3. Step 3: Cross multiply
    604,383.66x = 906,607.86 × 155,108.40
  4. Step 4: Simplify right side
    604,383.66x = 140,622,494,592.02
  5. Step 5: Solve for x
    x = 140,622,494,592.02/604,383.66
  6. Step 6: Final answer
    x = 232,670.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.