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Finding the Fourth Proportional to 590,438.70, 885,787.65 and 291,062.70

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Solution

The fourth proportional to 590,438.70, 885,787.65 and 291,062.70 is: 436,657.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,438.70 : 885,787.65 = 291,062.70 : x
  2. Step 2: Convert to fraction form
    590,438.70/885,787.65 = 291,062.70/x
  3. Step 3: Cross multiply
    590,438.70x = 885,787.65 × 291,062.70
  4. Step 4: Simplify right side
    590,438.70x = 257,819,745,035.66
  5. Step 5: Solve for x
    x = 257,819,745,035.66/590,438.70
  6. Step 6: Final answer
    x = 436,657.94

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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.