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Finding the Fourth Proportional to 437,586.20, 604,018.20 and 256,355.96

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Solution

The fourth proportional to 437,586.20, 604,018.20 and 256,355.96 is: 353,858.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,586.20 : 604,018.20 = 256,355.96 : x
  2. Step 2: Convert to fraction form
    437,586.20/604,018.20 = 256,355.96/x
  3. Step 3: Cross multiply
    437,586.20x = 604,018.20 × 256,355.96
  4. Step 4: Simplify right side
    437,586.20x = 154,843,665,518.47
  5. Step 5: Solve for x
    x = 154,843,665,518.47/437,586.20
  6. Step 6: Final answer
    x = 353,858.66

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1.5x scale

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.