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Finding the Fourth Proportional to 605,113.30, 906,287.55 and 356,281.30

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Solution

The fourth proportional to 605,113.30, 906,287.55 and 356,281.30 is: 533,608.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,113.30 : 906,287.55 = 356,281.30 : x
  2. Step 2: Convert to fraction form
    605,113.30/906,287.55 = 356,281.30/x
  3. Step 3: Cross multiply
    605,113.30x = 906,287.55 × 356,281.30
  4. Step 4: Simplify right side
    605,113.30x = 322,893,306,487.82
  5. Step 5: Solve for x
    x = 322,893,306,487.82/605,113.30
  6. Step 6: Final answer
    x = 533,608.01

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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.